文章
Dummer. ゛☀
2017年10月01日
Scientific Name
Aztekium ritteri (Boed.) Boed.
Common Names
Aztec Cactus
Synonyms
Echinocactus ritteri
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Aztekium
Description
Aztekium ritteri is a small cactus, up to 2 inches (5 cm) in diameter, with 9 to 11 ribs, which typically have transverse wrinkles. Its color varies from pale green to grayish-green. The center of the cactus contains a lot of white wool. Flowers are small, up to 0.4 inches (1 cm) wide, with white petals and pinkish sepals. It blooms throughout the summer. These flowers are followed by small pink fruit that open when ripe and let out tiny seeds.
How to Grow and Care
Aztekium are by far the most challenging and difficult cacti to grow. They are having extremely slow growth, probably the slowest of the entire cactus family. They usually take several years for growth to be even noticeable. Once a specimen is established on its own roots it is no trouble to keep it, and becomes an easy plant to manage.
Because of the difficulty of cultivation, Aztekiums are most often grafted to hardier stock. They need good drainage and regular water in summer. Water carefully from below in summer and keep nearly totally dry in winter. If grafted the plants can take a little more water. Just remember the graft stock is also a cactus and will rot if over watered. Provide shade from midday through the afternoon. A little morning sun is OK.
Aztekium ritteri (Boed.) Boed.
Common Names
Aztec Cactus
Synonyms
Echinocactus ritteri
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Aztekium
Description
Aztekium ritteri is a small cactus, up to 2 inches (5 cm) in diameter, with 9 to 11 ribs, which typically have transverse wrinkles. Its color varies from pale green to grayish-green. The center of the cactus contains a lot of white wool. Flowers are small, up to 0.4 inches (1 cm) wide, with white petals and pinkish sepals. It blooms throughout the summer. These flowers are followed by small pink fruit that open when ripe and let out tiny seeds.
How to Grow and Care
Aztekium are by far the most challenging and difficult cacti to grow. They are having extremely slow growth, probably the slowest of the entire cactus family. They usually take several years for growth to be even noticeable. Once a specimen is established on its own roots it is no trouble to keep it, and becomes an easy plant to manage.
Because of the difficulty of cultivation, Aztekiums are most often grafted to hardier stock. They need good drainage and regular water in summer. Water carefully from below in summer and keep nearly totally dry in winter. If grafted the plants can take a little more water. Just remember the graft stock is also a cactus and will rot if over watered. Provide shade from midday through the afternoon. A little morning sun is OK.
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文章
Dummer. ゛☀
2017年10月01日
Scientific Name
Obregonia denegrii Frič
Common Names
Artichoke Cactus
Synonyms
Ariocarpus denegrii, Strombocactus denegrii
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Obregonia
Description
Obregonia denegrii is the only representative of its monospecific genus and is related to Ariocarpus. The stem is solitary, globular-squashed resembling an inverted pine cone with a woolly center, up to 6 inches (15 cm) in diameter and is grayish green to dark green in color. The flowers grow between the wool of the apex, in the center of the stem on young tubercles, they are funnel-shaped white diurnal, up to 1 inch (2.5 cm) in diameter. Fruits are hidden in the wool, pear-shaped, white naked, fleshy and edible.
How to Grow and Care
This slow growing cactus isn’t always the easiest species to cultivate, but can enlarge relatively fast when well grown. It is often seen as a grafted plant but grows very well on its own roots too. Needs a very well drained soil with little organic material (peat, humus). Requires full sun to develop good compact growth and watering should be rather infrequent, to keep the plant flat shaped and not become excessively elongated and unnatural in appearance. Use water sparingly from March till October and keep perfectly dry in winter, or when night temperatures remain below 50° F (10° C). It is hardy to 25 °F (-4° C) for a short period. In the rest period no high atmospheric humidity.
Obregonia denegrii Frič
Common Names
Artichoke Cactus
Synonyms
Ariocarpus denegrii, Strombocactus denegrii
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Obregonia
Description
Obregonia denegrii is the only representative of its monospecific genus and is related to Ariocarpus. The stem is solitary, globular-squashed resembling an inverted pine cone with a woolly center, up to 6 inches (15 cm) in diameter and is grayish green to dark green in color. The flowers grow between the wool of the apex, in the center of the stem on young tubercles, they are funnel-shaped white diurnal, up to 1 inch (2.5 cm) in diameter. Fruits are hidden in the wool, pear-shaped, white naked, fleshy and edible.
How to Grow and Care
This slow growing cactus isn’t always the easiest species to cultivate, but can enlarge relatively fast when well grown. It is often seen as a grafted plant but grows very well on its own roots too. Needs a very well drained soil with little organic material (peat, humus). Requires full sun to develop good compact growth and watering should be rather infrequent, to keep the plant flat shaped and not become excessively elongated and unnatural in appearance. Use water sparingly from March till October and keep perfectly dry in winter, or when night temperatures remain below 50° F (10° C). It is hardy to 25 °F (-4° C) for a short period. In the rest period no high atmospheric humidity.
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文章
Dummer. ゛☀
2017年10月01日
Scientific Name
Echinocereus coccineus Engelm.
Common Names
Scarlet Hedgehog Cactus, Mexican Claret Cup Cactus, Arizona Hedgehog, California Hedgehog, Claret Cup Cactus, Cream Flower Hedgehog, Golden Rainbow Hedgehog
Synonyms
Echinocereus triglochidiatus subsp. coccineus, Echinocereus triglochidiatus var. coccineus, Cereus hexaedrus, Echinocereus krausei, Echinocereus melanacanthus, Echinocereus roemeri, Mammillaria aggregata
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Pachycereeae
Genus: Echinocereus
Description
Echinocereus coccineus is a species of hedgehog cactus, usually clumping, it forms large colonies of up to 100 thick stems on each plant at maturity. Stems are semi-erect, dark green, up to 16 inches (40 cm) tall, up to 2 inches (5 cm) in diameter and can vary from almost spineless to wildly and densely spined. Spines are yellowish and turn grey after a number of years. Flowers are up to 3 inches (7.5 cm) long, color ranges from near orange, scarlet, and pink to deep crimson shades. Fruiting 2-3 months after flowering.
How to Grow and Care
If you can successfully grow other globular cactus, you can most likely grow Echinocereus well. One of the key factors in success with these is avoiding any hint of wet soil. Because their root systems are weak, they are especially prone to root rot, which will eventually kill your plant. Otherwise, they thrive on a program of strong, bright light; slight water; and a steady diet of light fertilizer. Echinocereus is vulnerable to mealybugs and aphids.
Echinocereus are slow growing cactus that should only need repotting every other year or so. You can prolong the time to repotting by removing plantlets and potting them up in their own pots. When repotting a cactus, carefully remove it from its pot and knock away any clumped soil.
Echinocereus coccineus Engelm.
Common Names
Scarlet Hedgehog Cactus, Mexican Claret Cup Cactus, Arizona Hedgehog, California Hedgehog, Claret Cup Cactus, Cream Flower Hedgehog, Golden Rainbow Hedgehog
Synonyms
Echinocereus triglochidiatus subsp. coccineus, Echinocereus triglochidiatus var. coccineus, Cereus hexaedrus, Echinocereus krausei, Echinocereus melanacanthus, Echinocereus roemeri, Mammillaria aggregata
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Pachycereeae
Genus: Echinocereus
Description
Echinocereus coccineus is a species of hedgehog cactus, usually clumping, it forms large colonies of up to 100 thick stems on each plant at maturity. Stems are semi-erect, dark green, up to 16 inches (40 cm) tall, up to 2 inches (5 cm) in diameter and can vary from almost spineless to wildly and densely spined. Spines are yellowish and turn grey after a number of years. Flowers are up to 3 inches (7.5 cm) long, color ranges from near orange, scarlet, and pink to deep crimson shades. Fruiting 2-3 months after flowering.
How to Grow and Care
If you can successfully grow other globular cactus, you can most likely grow Echinocereus well. One of the key factors in success with these is avoiding any hint of wet soil. Because their root systems are weak, they are especially prone to root rot, which will eventually kill your plant. Otherwise, they thrive on a program of strong, bright light; slight water; and a steady diet of light fertilizer. Echinocereus is vulnerable to mealybugs and aphids.
Echinocereus are slow growing cactus that should only need repotting every other year or so. You can prolong the time to repotting by removing plantlets and potting them up in their own pots. When repotting a cactus, carefully remove it from its pot and knock away any clumped soil.
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文章
Dummer. ゛☀
2017年10月01日
Scientific Name
Ferocactus wislizeni (Engelm.) Britton & Rose
Common Names
Fishhook Barrel Cactus, Fishhook Cactus, Arizona Barrel Cactus, Candy Barrel Cactus, Southwestern Barrel Cactus, Compass Barrel
Synonyms
Echinocactus wislizeni (basionym)
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Ferocactus
Description
Ferocactus wislizeni is a barrel shaped or columnar cactus with cylindrical stem, up to 30 inches (80 cm) in diameter and up to 6.5 feet (2 m) tall. The spines are thick and hooked. It has a leathery asparagus green skin with approximately 15-28 ribs per cactus. Its flowers are yellow to red-orange with reddish midribs and brown tips, up to 3 inches (7.5 cm) long and appear atop the cactus fruit during the summer months. The fruits are green when unripe, yellow after the flower dries up, and persist atop the cactus long after the flower is gone, sometimes for more than a year.
How to Grow and Care
Choose a planting location that receives direct sun during all or most of the day. Water the cactus at the time of planting to anchor it into the soil. Plant your Barrel Cactus in early spring before new roots begin to form in late June and early July. The roots may appear dry, but that is typical before new growth begins. Dig a hole deep enough for the plant’s roots and amend it as needed to provide fast-draining soil. A good soil mixture includes 10 percent native soil, 45 percent washed sand or pumice and 45 percent compost.
Ferocactus wislizeni (Engelm.) Britton & Rose
Common Names
Fishhook Barrel Cactus, Fishhook Cactus, Arizona Barrel Cactus, Candy Barrel Cactus, Southwestern Barrel Cactus, Compass Barrel
Synonyms
Echinocactus wislizeni (basionym)
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Ferocactus
Description
Ferocactus wislizeni is a barrel shaped or columnar cactus with cylindrical stem, up to 30 inches (80 cm) in diameter and up to 6.5 feet (2 m) tall. The spines are thick and hooked. It has a leathery asparagus green skin with approximately 15-28 ribs per cactus. Its flowers are yellow to red-orange with reddish midribs and brown tips, up to 3 inches (7.5 cm) long and appear atop the cactus fruit during the summer months. The fruits are green when unripe, yellow after the flower dries up, and persist atop the cactus long after the flower is gone, sometimes for more than a year.
How to Grow and Care
Choose a planting location that receives direct sun during all or most of the day. Water the cactus at the time of planting to anchor it into the soil. Plant your Barrel Cactus in early spring before new roots begin to form in late June and early July. The roots may appear dry, but that is typical before new growth begins. Dig a hole deep enough for the plant’s roots and amend it as needed to provide fast-draining soil. A good soil mixture includes 10 percent native soil, 45 percent washed sand or pumice and 45 percent compost.
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文章
Dummer. ゛☀
2017年10月01日
Scientific Name
Ferocactus emoryi (Engelm.) Orcutt
Common Names
Emory’s Barrel Cactus, Emory Barrel, Coville’s Barrel Cactus, Coville’s Cactus, Traveler’s Friend, Arizona Barrel Cactus, Long-Spined Barrel Cactus, Sonora Barrel
Synonyms
Ferocactus covillei, Echinocactus emoryi, Echinocactus covillei, Ferocactus emoryi subsp. emoryi
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Ferocactus
Description
Ferocactus emoryi is spherical or cylindrical solitary barrel cactus, light green to glaucous, up to 40 inches (1 m) in diameter and up to 8.2 feet (2.5 m) tall. It has 15 to 30 ribs with tubercles, especially in the juvenile stage. The spines are white to reddish. The central spine is very strong, up to 4 inches (10 cm) long, while the seven to twelve radial spines reach lengths of up to 2.4 inches (6 cm). The large and funnel-shaped flowers are usually red or yellow, up to 3 inches (7.5 cm) long and up to 2.8 inches (7 cm) in diameter. The fruit is ovoidal, up to 2 inches (5 cm) long.
How to Grow and Care
Choose a planting location that receives direct sun during all or most of the day. Water the cactus at the time of planting to anchor it into the soil. Water again only if the weather in your area is unseasonably dry and if normal spring or winter rainfall doesn’t occur. Plant your Barrel Cactus in early spring before new roots begin to form in late June and early July.
Ferocactus emoryi (Engelm.) Orcutt
Common Names
Emory’s Barrel Cactus, Emory Barrel, Coville’s Barrel Cactus, Coville’s Cactus, Traveler’s Friend, Arizona Barrel Cactus, Long-Spined Barrel Cactus, Sonora Barrel
Synonyms
Ferocactus covillei, Echinocactus emoryi, Echinocactus covillei, Ferocactus emoryi subsp. emoryi
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Ferocactus
Description
Ferocactus emoryi is spherical or cylindrical solitary barrel cactus, light green to glaucous, up to 40 inches (1 m) in diameter and up to 8.2 feet (2.5 m) tall. It has 15 to 30 ribs with tubercles, especially in the juvenile stage. The spines are white to reddish. The central spine is very strong, up to 4 inches (10 cm) long, while the seven to twelve radial spines reach lengths of up to 2.4 inches (6 cm). The large and funnel-shaped flowers are usually red or yellow, up to 3 inches (7.5 cm) long and up to 2.8 inches (7 cm) in diameter. The fruit is ovoidal, up to 2 inches (5 cm) long.
How to Grow and Care
Choose a planting location that receives direct sun during all or most of the day. Water the cactus at the time of planting to anchor it into the soil. Water again only if the weather in your area is unseasonably dry and if normal spring or winter rainfall doesn’t occur. Plant your Barrel Cactus in early spring before new roots begin to form in late June and early July.
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Dummer. ゛☀
2017年10月01日
Scientific Name
Cereus repandus (L.) Mill.
Common Names
Giant Club Cactus, Hedge Cactus, Apple Cactus, Peruvian Apple Cactus, Peruvian Apple, Peruvian Tree Cactus
Synonyms
Cactus repandus (basionym), Cereus peruvianus, Cactus peruvianus, Stenocereus peruvianus, Cereus grenadensis, Cereus margaritensis, Cereus remolinensis, Cereus atroviridis, Pilocereus repandus
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cereeae
Genus: Cereus
Description
Cereus repandus is a large, erect, thorny columnar cactus with cylindrical gray-green to blue stems, up to 33 feet (10 m) tall and up to 8 inches (20 cm) in diameter. The nocturnal flowers, up to 6 inches (15 cm) long remain open for only one night. The fruits, known locally as “Pitaya” or Peruvian Apple are thornless, violet-red to yellow in color and up to 2 inches (5 cm) in diameter.
How to Grow and Care
Like most cacti, Cereus are fairly low-maintenance and hardy. Make sure they receive enough water without becoming waterlogged, especially during the summer, and fertilize them for best results. If the roots have become black or overly soft, the cactus could be experiencing root rot – cut away the affected parts and replant. Like all cacti, give them lots of direct sunlight, especially during the summer. Well-drained soil is best, and most Cereus perform well in a soil that contains some organic material. Some recommend avoiding a soil that contains sphagnum moss, though – it can make the cactus vulnerable to root rot.
Cereus repandus (L.) Mill.
Common Names
Giant Club Cactus, Hedge Cactus, Apple Cactus, Peruvian Apple Cactus, Peruvian Apple, Peruvian Tree Cactus
Synonyms
Cactus repandus (basionym), Cereus peruvianus, Cactus peruvianus, Stenocereus peruvianus, Cereus grenadensis, Cereus margaritensis, Cereus remolinensis, Cereus atroviridis, Pilocereus repandus
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cereeae
Genus: Cereus
Description
Cereus repandus is a large, erect, thorny columnar cactus with cylindrical gray-green to blue stems, up to 33 feet (10 m) tall and up to 8 inches (20 cm) in diameter. The nocturnal flowers, up to 6 inches (15 cm) long remain open for only one night. The fruits, known locally as “Pitaya” or Peruvian Apple are thornless, violet-red to yellow in color and up to 2 inches (5 cm) in diameter.
How to Grow and Care
Like most cacti, Cereus are fairly low-maintenance and hardy. Make sure they receive enough water without becoming waterlogged, especially during the summer, and fertilize them for best results. If the roots have become black or overly soft, the cactus could be experiencing root rot – cut away the affected parts and replant. Like all cacti, give them lots of direct sunlight, especially during the summer. Well-drained soil is best, and most Cereus perform well in a soil that contains some organic material. Some recommend avoiding a soil that contains sphagnum moss, though – it can make the cactus vulnerable to root rot.
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文章
Dummer. ゛☀
2017年10月01日
Scientific Name
Cereus hildmannianus K. Schum.
Common Names
Hedge Cactus, Queen of the Night, Andes Organ Pipe, Peruvian Apple, Spiny Tree Cactus
Synonyms
Cereus peruvianus (misapplied), Cereus uruguayanus
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cereeae
Genus: Cereus
Description
Cereus hildmannianus is a columnar slow growing cactus branching form the base, up to 30 feet (9 m) tall, clump up to 15 feet (4.5 m) in diameter. The stem is blue-green in color when young, becoming duller green with age, up to 8 inches (20 cm) across, with 4 – 6 (8) ribs which are divided into segments. Usually there are no spines on the younger stems, the spines grow progressively as the stem ages. The white flowers are very large, up to 12 inches (30 cm) long and up to 6 inches (15 cm) in diameter, followed by large, up to 2.5 inches (6 cm) in diameter, egg shaped fruits which are red when ripe.
Hardiness
USDA hardiness zone 8b to 11b: from 15 °F (−9.4 °C) to 50 °F (+10 °C).
How to Grow and Care
Like most cacti, Cereus are fairly low-maintenance and hardy. Make sure they receive enough water without becoming waterlogged, especially during the summer, and fertilize them for best results. If the roots have become black or overly soft, the cactus could be experiencing root rot – cut away the affected parts and replant. Like all cacti, give them lots of direct sunlight, especially during the summer.
Cereus hildmannianus K. Schum.
Common Names
Hedge Cactus, Queen of the Night, Andes Organ Pipe, Peruvian Apple, Spiny Tree Cactus
Synonyms
Cereus peruvianus (misapplied), Cereus uruguayanus
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cereeae
Genus: Cereus
Description
Cereus hildmannianus is a columnar slow growing cactus branching form the base, up to 30 feet (9 m) tall, clump up to 15 feet (4.5 m) in diameter. The stem is blue-green in color when young, becoming duller green with age, up to 8 inches (20 cm) across, with 4 – 6 (8) ribs which are divided into segments. Usually there are no spines on the younger stems, the spines grow progressively as the stem ages. The white flowers are very large, up to 12 inches (30 cm) long and up to 6 inches (15 cm) in diameter, followed by large, up to 2.5 inches (6 cm) in diameter, egg shaped fruits which are red when ripe.
Hardiness
USDA hardiness zone 8b to 11b: from 15 °F (−9.4 °C) to 50 °F (+10 °C).
How to Grow and Care
Like most cacti, Cereus are fairly low-maintenance and hardy. Make sure they receive enough water without becoming waterlogged, especially during the summer, and fertilize them for best results. If the roots have become black or overly soft, the cactus could be experiencing root rot – cut away the affected parts and replant. Like all cacti, give them lots of direct sunlight, especially during the summer.
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文章
Dummer. ゛☀
2017年10月01日
Scientific Name
Echinocereus pentalophus (DC.) Lem.
Common Names
Lady Finger Cactus, Dog Tail, Alicoche, Devil’s Fingers
Synonyms
Cereus pentalophus, Echinocereus pentalophus subsp. pentalophus, Echinocereus procumbens
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Pachycereeae
Genus: Echinocereus
Description
Echinocereus pentalophus – Lady Finger Cactus is a mat-forming cactus with many crowded finger-like stems. The narrow green stems, up to 1 inch (2.5 cm) in diameter, have 5 (sometimes 4) ribs, with evenly-spaced clusters of 4 to 7 short white or yellowish spines, one of which is a little longer and more central. The plant branches profusely, the stems growing sideways along or close to the ground, becoming several feet long, and they produce many large pink flowers up to 6 inches (15 cm) across, in late spring, followed by green fruits.
How to Grow and Care
If you can successfully grow other globular cactus, you can most likely grow Echinocereus well. One of the key factors in success with these is avoiding any hint of wet soil. Because their root systems are weak, they are especially prone to root rot, which will eventually kill your plant. Otherwise, they thrive on a program of strong, bright light; slight water; and a steady diet of light fertilizer. Echinocereus is vulnerable to mealybugs and aphids. Echinocereus are slow growing cactus that should only need repotting every other year or so. You can prolong the time to repotting by removing plantlets and potting them up in their own pots. When repotting a cactus, carefully remove it from its pot and knock away any clumped soil.
Echinocereus pentalophus (DC.) Lem.
Common Names
Lady Finger Cactus, Dog Tail, Alicoche, Devil’s Fingers
Synonyms
Cereus pentalophus, Echinocereus pentalophus subsp. pentalophus, Echinocereus procumbens
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Pachycereeae
Genus: Echinocereus
Description
Echinocereus pentalophus – Lady Finger Cactus is a mat-forming cactus with many crowded finger-like stems. The narrow green stems, up to 1 inch (2.5 cm) in diameter, have 5 (sometimes 4) ribs, with evenly-spaced clusters of 4 to 7 short white or yellowish spines, one of which is a little longer and more central. The plant branches profusely, the stems growing sideways along or close to the ground, becoming several feet long, and they produce many large pink flowers up to 6 inches (15 cm) across, in late spring, followed by green fruits.
How to Grow and Care
If you can successfully grow other globular cactus, you can most likely grow Echinocereus well. One of the key factors in success with these is avoiding any hint of wet soil. Because their root systems are weak, they are especially prone to root rot, which will eventually kill your plant. Otherwise, they thrive on a program of strong, bright light; slight water; and a steady diet of light fertilizer. Echinocereus is vulnerable to mealybugs and aphids. Echinocereus are slow growing cactus that should only need repotting every other year or so. You can prolong the time to repotting by removing plantlets and potting them up in their own pots. When repotting a cactus, carefully remove it from its pot and knock away any clumped soil.
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Dummer. ゛☀
2017年10月01日
Scientific Name
Opuntia microdasys var. albispina Fobe
Common Names
Polka Dots, Polka Dot Cactus, Angel Wings, Honey Bunny, Bunny Ears, Alba Bunny Ears
Scientific Classification
Family: Cactaceae
Subfamily: Opuntioideae
Tribe: Opuntieae
Genus: Opuntia
Description
Opuntia microdasys var. albispina is a freely clustering cactus with miniature pads. It forms a dense shrub, up to 2 feet (60 cm) high and up to 5 feet (1.5 m) across. It has no spines, but instead has numerous white hair-like glochids in dense clusters. Flowers are lemon yellow in color and up to 2 inches (5 cm) in diameter, followed by red fruits.
How to Grow and Care
Though the large variety of species within the Opuntia genus means different types of prickly pears may need slightly different care, all are desert cacti that need lots of sun, lots of light, and very little water. If you live in a hot, arid area – particularly the American Southwest – these plants can generally be planted outside, left alone, and enjoyed. Though Opuntia will grow just fine in a garden, they can be grown in pots as well.
To repot, ensure the soil is dry, then remove the pot and knock away the old soil. After treating any cuts with fungicide, place the prickly pear in a new pot and backfill it with potting soil. As with a new cutting, make sure not to water a newly repotting prickly pear for a brief period to avoid rotting its roots.
Opuntia microdasys var. albispina Fobe
Common Names
Polka Dots, Polka Dot Cactus, Angel Wings, Honey Bunny, Bunny Ears, Alba Bunny Ears
Scientific Classification
Family: Cactaceae
Subfamily: Opuntioideae
Tribe: Opuntieae
Genus: Opuntia
Description
Opuntia microdasys var. albispina is a freely clustering cactus with miniature pads. It forms a dense shrub, up to 2 feet (60 cm) high and up to 5 feet (1.5 m) across. It has no spines, but instead has numerous white hair-like glochids in dense clusters. Flowers are lemon yellow in color and up to 2 inches (5 cm) in diameter, followed by red fruits.
How to Grow and Care
Though the large variety of species within the Opuntia genus means different types of prickly pears may need slightly different care, all are desert cacti that need lots of sun, lots of light, and very little water. If you live in a hot, arid area – particularly the American Southwest – these plants can generally be planted outside, left alone, and enjoyed. Though Opuntia will grow just fine in a garden, they can be grown in pots as well.
To repot, ensure the soil is dry, then remove the pot and knock away the old soil. After treating any cuts with fungicide, place the prickly pear in a new pot and backfill it with potting soil. As with a new cutting, make sure not to water a newly repotting prickly pear for a brief period to avoid rotting its roots.
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文章
Dummer. ゛☀
2017年10月01日
Scientific Name
Leuchtenbergia principis Hook.
Common Names
Agave Cactus, Cob Cactus, Prism Cactus
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Leuchtenbergia
Description
Leuchtenbergia principis is the sole species of the genus Leuchtenbergia. It is very slow-growing but can eventually grow up to 2.3 feet (70 cm) high, with a cylindrical stem which becomes bare and corky at the base with age. It has long, slender, grayish-green tubercles up to 3 inches (12.5 cm) long, with purplish-red blotches at their tips. The tubercles are topped with papery spines, making the plant resemble an Agave. After four years or so, yellow, funnel-shaped flowers up to 2.4 inches (6 cm) in diameter may be borne at the tubercle tips. The fruit is smooth and green, up to 1.2 inches (3 cm) long and 0.8 inch (2 cm) broad.
How to Grow and Care
The Agave Cactus is a reasonably easy and tolerant plant, and should grow well given the basic guidelines for growing cacti and other succulents. However, this is a desert species, which is adapted to arid conditions, and seems to benefit from intense solar radiation. It should always be moved to a position outside during the warmer months of spring through early fall to benefit from exposure to direct sunlight, and the increased temperatures of summer.
Grown exclusively indoors, this species will slowly languish from the comparatively low light levels of interior spaces, and will probably never really thrive. Grown outdoors, this plant has proven to be a reliable bloomer, invariably producing intermittent blooms from late June through September. Despite its desert origins, Agave Cactus tolerate a remarkable amount of rain through their outdoor growing season, but due to their large, turnip-like roots, they can be very susceptible to root rot when exposed to extended cool and wet conditions, so the potting medium should be especially gritty to provide that extra drainage necessary for this species, and extra care should be given through the winter months to prevent over-watering this species.
Leuchtenbergia principis Hook.
Common Names
Agave Cactus, Cob Cactus, Prism Cactus
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Leuchtenbergia
Description
Leuchtenbergia principis is the sole species of the genus Leuchtenbergia. It is very slow-growing but can eventually grow up to 2.3 feet (70 cm) high, with a cylindrical stem which becomes bare and corky at the base with age. It has long, slender, grayish-green tubercles up to 3 inches (12.5 cm) long, with purplish-red blotches at their tips. The tubercles are topped with papery spines, making the plant resemble an Agave. After four years or so, yellow, funnel-shaped flowers up to 2.4 inches (6 cm) in diameter may be borne at the tubercle tips. The fruit is smooth and green, up to 1.2 inches (3 cm) long and 0.8 inch (2 cm) broad.
How to Grow and Care
The Agave Cactus is a reasonably easy and tolerant plant, and should grow well given the basic guidelines for growing cacti and other succulents. However, this is a desert species, which is adapted to arid conditions, and seems to benefit from intense solar radiation. It should always be moved to a position outside during the warmer months of spring through early fall to benefit from exposure to direct sunlight, and the increased temperatures of summer.
Grown exclusively indoors, this species will slowly languish from the comparatively low light levels of interior spaces, and will probably never really thrive. Grown outdoors, this plant has proven to be a reliable bloomer, invariably producing intermittent blooms from late June through September. Despite its desert origins, Agave Cactus tolerate a remarkable amount of rain through their outdoor growing season, but due to their large, turnip-like roots, they can be very susceptible to root rot when exposed to extended cool and wet conditions, so the potting medium should be especially gritty to provide that extra drainage necessary for this species, and extra care should be given through the winter months to prevent over-watering this species.
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Dummer. ゛☀
2017年10月01日
Scientific Name
Euphorbia trigona Mill.
Common Names
African Milk Tree, High Chaparall, Cathedral Cactus
Synonyms
Euphorbia hermentiana
Scientific Classification
Family: Euphorbiaceae
Subfamily: Euphorbioideae
Tribe: Euphorbieae
Subtribe: Euphorbiinae
Genus: Euphorbia
Description
Euphorbia trigona is a perennial plant, up to 9 feet (2.7 m) tall. It has an upright stem that is branched into three or four sides. The stem itself is dark green with V-shaped light green patterns. The up to 0.2 inch (5 mm) long thorns are placed in pairs of two on the stem’s ridges. The drop shaped leafs grows from between the two thorns on each ridge. The plant’s flowers are white or a combination of white and light yellow. The flowers appear on spring and summer, but potted versions of the plant may not grow flowers at all.
How to Grow and Care
Euphorbias are very easy to care for. They require a little pampering to become established, but once they are, they are self-sufficient. In fact, more die from too much care and watering than from neglect. Euphorbias need well-draining soil and lots of sunlight. They are not particular about soil pH, but they cannot tolerant wet soil. Unlike most succulents, Euphorbia does not handle long periods of drought well. It may need weekly watering during the summer. Water whenever the soil is dry several inches below the surface. Water deeply, but don’t let them sit in wet soil, which can cause root rot.
Euphorbia trigona Mill.
Common Names
African Milk Tree, High Chaparall, Cathedral Cactus
Synonyms
Euphorbia hermentiana
Scientific Classification
Family: Euphorbiaceae
Subfamily: Euphorbioideae
Tribe: Euphorbieae
Subtribe: Euphorbiinae
Genus: Euphorbia
Description
Euphorbia trigona is a perennial plant, up to 9 feet (2.7 m) tall. It has an upright stem that is branched into three or four sides. The stem itself is dark green with V-shaped light green patterns. The up to 0.2 inch (5 mm) long thorns are placed in pairs of two on the stem’s ridges. The drop shaped leafs grows from between the two thorns on each ridge. The plant’s flowers are white or a combination of white and light yellow. The flowers appear on spring and summer, but potted versions of the plant may not grow flowers at all.
How to Grow and Care
Euphorbias are very easy to care for. They require a little pampering to become established, but once they are, they are self-sufficient. In fact, more die from too much care and watering than from neglect. Euphorbias need well-draining soil and lots of sunlight. They are not particular about soil pH, but they cannot tolerant wet soil. Unlike most succulents, Euphorbia does not handle long periods of drought well. It may need weekly watering during the summer. Water whenever the soil is dry several inches below the surface. Water deeply, but don’t let them sit in wet soil, which can cause root rot.
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Dummer. ゛☀
2017年10月01日
Scientific Name
Euphorbia tirucalli L.
Common Names
Firestick Plants, Sticks on Fire, African Milk Bush, Finger Tree, Indian Tree Spurge, Milk Bush, Milk Hedge, Naked Lady, Pencil Tree, Pencil Euphorbia, Pencil Cactus, Petroleum Plant, Rubber Euphorbia, Rubber Hedge Euphorbia
Synonyms
Arthrothamnus bergii, Arthrothamnus ecklonii, Arthrothamnus tirucalli, Euphorbia geayi, Euphorbia laro, Euphorbia media, Euphorbia media var. bagshawei, Euphorbia rhipsaloides, Euphorbia scoparia, Euphorbia suareziana, Euphorbia tirucalli var. rhipsaloides, Euphorbia viminalis, Tirucalia indica, Tirucalia tirucalli
Scientific Classification
Family: Euphorbiaceae
Subfamily: Euphorbioideae
Tribe: Euphorbieae
Subtribe: Euphorbiinae
Genus: Euphorbia
Description
Euphorbia tirucalli is a succulent, spineless, hardy green shrub, up to 33 feet (10 m) tall. The branches are cylindrical, smooth and glabrous-green, up to 0.31 inch (8 mm) in diameter, forming brush-like masses. The leaves are small and slender, up to 1 inch (2.5 cm) long and up to 0.16 inch (4 mm) wide. The flowers are yellow, inconspicuous, and carried in clusters at the apex of the short branches or in the angles of branches. Fruits are tripartite capsules, up to 0.47 inch ( 12 mm) in diameter.
How to Grow and Care
Euphorbias are very easy to care for. They require a little pampering to become established, but once they are, they are self-sufficient. In fact, more die from too much care and watering than from neglect. Euphorbias need well-draining soil and lots of sunlight. They are not particular about soil pH, but they cannot tolerant wet soil.
Euphorbia tirucalli L.
Common Names
Firestick Plants, Sticks on Fire, African Milk Bush, Finger Tree, Indian Tree Spurge, Milk Bush, Milk Hedge, Naked Lady, Pencil Tree, Pencil Euphorbia, Pencil Cactus, Petroleum Plant, Rubber Euphorbia, Rubber Hedge Euphorbia
Synonyms
Arthrothamnus bergii, Arthrothamnus ecklonii, Arthrothamnus tirucalli, Euphorbia geayi, Euphorbia laro, Euphorbia media, Euphorbia media var. bagshawei, Euphorbia rhipsaloides, Euphorbia scoparia, Euphorbia suareziana, Euphorbia tirucalli var. rhipsaloides, Euphorbia viminalis, Tirucalia indica, Tirucalia tirucalli
Scientific Classification
Family: Euphorbiaceae
Subfamily: Euphorbioideae
Tribe: Euphorbieae
Subtribe: Euphorbiinae
Genus: Euphorbia
Description
Euphorbia tirucalli is a succulent, spineless, hardy green shrub, up to 33 feet (10 m) tall. The branches are cylindrical, smooth and glabrous-green, up to 0.31 inch (8 mm) in diameter, forming brush-like masses. The leaves are small and slender, up to 1 inch (2.5 cm) long and up to 0.16 inch (4 mm) wide. The flowers are yellow, inconspicuous, and carried in clusters at the apex of the short branches or in the angles of branches. Fruits are tripartite capsules, up to 0.47 inch ( 12 mm) in diameter.
How to Grow and Care
Euphorbias are very easy to care for. They require a little pampering to become established, but once they are, they are self-sufficient. In fact, more die from too much care and watering than from neglect. Euphorbias need well-draining soil and lots of sunlight. They are not particular about soil pH, but they cannot tolerant wet soil.
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Dummer. ゛☀
2017年10月01日
False Peyote (Ariocarpus fissuratus) is a small cactus that grows only a few centimeters in height and about 4-6 inches in diameter. Its nodes end in pointed triangles, giving the cactus a star-like appearance. The flowers are pink-violet in color. These little cacti are often mistaken for rocks in the stony desert in which they grow and are therefore difficult to find. Ariocarpus fissuratus is found only in New Mexico, northern Mexico and southwest Texas.
Traditional Uses
Ariocarpus fissuratus is usually referred to as false or dangerous Peyote, and has been known in the Americas since pre-Columbian times. This cactus was very possibly used as a Peyote substitute when Peyote was unavailable. The Huichol strongly warn against consuming Ariocarpus fissuratus, and associate it with dark sorcery. They believe that those individuals who do not properly purify themselves at the start of the Peyote hunt pilgrimage by admitting all of their sexual encounters outside of marriage may mistake Ariocarpus fissuratus for real Peyote, the consumption of which will result in a deliriant-hallucinogenic state. The Tarahumara, meanwhile, consider they to be even more powerful than Peyote.
Medicinal Uses
Ariocarpus fissuratus, and the related Ariocarpus retusus may have been used to treat malaria by some peoples in Mexico. The related Ariocarpus kotschoubeyanus is used as an external medicine to treat wounds. Certain reports of the consumption of Ariocarpus fissuratus also mention that it has strong narcotic pain-killing properties.
Traditional Uses
Ariocarpus fissuratus is usually referred to as false or dangerous Peyote, and has been known in the Americas since pre-Columbian times. This cactus was very possibly used as a Peyote substitute when Peyote was unavailable. The Huichol strongly warn against consuming Ariocarpus fissuratus, and associate it with dark sorcery. They believe that those individuals who do not properly purify themselves at the start of the Peyote hunt pilgrimage by admitting all of their sexual encounters outside of marriage may mistake Ariocarpus fissuratus for real Peyote, the consumption of which will result in a deliriant-hallucinogenic state. The Tarahumara, meanwhile, consider they to be even more powerful than Peyote.
Medicinal Uses
Ariocarpus fissuratus, and the related Ariocarpus retusus may have been used to treat malaria by some peoples in Mexico. The related Ariocarpus kotschoubeyanus is used as an external medicine to treat wounds. Certain reports of the consumption of Ariocarpus fissuratus also mention that it has strong narcotic pain-killing properties.
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Dummer. ゛☀
2017年10月01日
Old movies and television programs have made Barrel Cactus famous. For years, popular media touted the Barrel Cactus as a provider of life-saving water for lost and thirsty travelers. The story was based on the cactus’ remarkably juicy interior that could be squeezed to release a distasteful fluid. A recent chemical evaluation of the liquid, however, indicates it is too alkaline to quench one’s thirst. In truth, a person would be worse off after drinking it. The Seri Indians of Mexico’s Sonoran Desert were aware of this fact and described how the liquid was not considered potable and caused headaches, diarrhea and pain in the extremities if consumed.
The California Barrel Cactus (Ferocactus cylindraceus) was introduced to the scientific community by German-born botanist George Engelmann in 1853. He characterized the species as having a cylindrical shape, vertical rows of curved spines and large yellow blossoms often forming a circular crown on top of a single, swollen stem. (Most plants have one stem though occasionally multi-stemmed individuals are found. The condition is thought to be a result of rodents or other mammals gnawing the less well-armed base of the plant.) Providing a cactus does not succumb to multiple-years of drought, depredations of woodrats searching for moist food, or being carried away by a flash flood, a Barrel Cactus can survive for nearly a century. Such old plants may reach ten feet in height and may finally die when toppled by strong winds.
In historic times, all products of the plant’s reproductive cycle were collected by Native Americans. In spring, Indian women collected buds and flowers. In summer ripened fruits were harvested. In both seasons reproductive parts were plucked from the top of cacti with sticks to avoid sharp spines. Buds, flowers and fruits were parboiled to remove bitterness. After cooking, harvested parts were either eaten immediately or sun dried and stored.
There are twenty-five species in the genus Ferocactus with the largest number occurring in Mexico. Only Ferocactus cylindraceus occurs in the deserts of California. A second species, Ferocactus viridescens (San Diego Barrel Cactus), is found on the coastal side of the mountains in Southern California’s San Diego County. Two additional species, Ferocactus wislizeni (Arizona Barrel Cactus) and Ferocactus covillei (Coville’s Barrel Cactus) also occur in the Sonoran Desert but only in Arizona and adjacent Mexico.
California Barrel Cacti are found on coarse-grained (well-drained) soils of hillsides, alluvial fans and bajadas in both the Sonoran and Mojave deserts of California. The species is particularly abundant on eastern slopes of the Peninsular Ranges and in the eastern Mojave Desert. Both locations are centered where summer rains are more likely than in other parts of the desert. The species has been discovered at elevations up to 5,000 feet on south-facing slopes.
In the Coachella Valley, the best places to view and photograph California Barrel Cacti include the Indian Canyons Tribal Park south of Palm Springs and Devil’s Garden about 1.5 miles (2.4 km) northwest of Highway 62 on Mission Creek Road. At the latter location, park at the concrete berm and walk directly west.
The California Barrel Cactus (Ferocactus cylindraceus) was introduced to the scientific community by German-born botanist George Engelmann in 1853. He characterized the species as having a cylindrical shape, vertical rows of curved spines and large yellow blossoms often forming a circular crown on top of a single, swollen stem. (Most plants have one stem though occasionally multi-stemmed individuals are found. The condition is thought to be a result of rodents or other mammals gnawing the less well-armed base of the plant.) Providing a cactus does not succumb to multiple-years of drought, depredations of woodrats searching for moist food, or being carried away by a flash flood, a Barrel Cactus can survive for nearly a century. Such old plants may reach ten feet in height and may finally die when toppled by strong winds.
In historic times, all products of the plant’s reproductive cycle were collected by Native Americans. In spring, Indian women collected buds and flowers. In summer ripened fruits were harvested. In both seasons reproductive parts were plucked from the top of cacti with sticks to avoid sharp spines. Buds, flowers and fruits were parboiled to remove bitterness. After cooking, harvested parts were either eaten immediately or sun dried and stored.
There are twenty-five species in the genus Ferocactus with the largest number occurring in Mexico. Only Ferocactus cylindraceus occurs in the deserts of California. A second species, Ferocactus viridescens (San Diego Barrel Cactus), is found on the coastal side of the mountains in Southern California’s San Diego County. Two additional species, Ferocactus wislizeni (Arizona Barrel Cactus) and Ferocactus covillei (Coville’s Barrel Cactus) also occur in the Sonoran Desert but only in Arizona and adjacent Mexico.
California Barrel Cacti are found on coarse-grained (well-drained) soils of hillsides, alluvial fans and bajadas in both the Sonoran and Mojave deserts of California. The species is particularly abundant on eastern slopes of the Peninsular Ranges and in the eastern Mojave Desert. Both locations are centered where summer rains are more likely than in other parts of the desert. The species has been discovered at elevations up to 5,000 feet on south-facing slopes.
In the Coachella Valley, the best places to view and photograph California Barrel Cacti include the Indian Canyons Tribal Park south of Palm Springs and Devil’s Garden about 1.5 miles (2.4 km) northwest of Highway 62 on Mission Creek Road. At the latter location, park at the concrete berm and walk directly west.
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