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Astrophytum
''Astrophytum'' is a genus of six species of cacti, native to North America. These species are sometimes referred to as living rocks, though the term is also used for other genera, particularly ''Lithops'' ( Aizoaceae). The generic name is derived from the Greek words άστρον (''astron''), meaning "star," and φυτόν (''phyton''), meaning "plant." Description The species of the genus ''Astrophytum'' usually grow individually with spherical to columnar green shoots and reach heights of up to 1.5 meters. The shoots are often densely covered with fine white tufts of hair, but sometimes they are completely bald. There are four to ten (rarely three) very noticeable ribs that are not divided into cusps. The large areoles stand close together, but do not merge. The spike is variable. Spines may be present or may be missing entirely. The funnel-shaped, large flowers are yellow or yellow with a red throat. They appear at the top of the shoots and open during the day. The per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrophytum Asterias 30
''Astrophytum'' is a genus of six species of cacti, native to North America. These species are sometimes referred to as living rocks, though the term is also used for other genera, particularly ''Lithops'' (Aizoaceae). The generic name is derived from the Greek words άστρον (''astron''), meaning "star," and φυτόν (''phyton''), meaning "plant." Description The species of the genus ''Astrophytum'' usually grow individually with spherical to columnar green shoots and reach heights of up to 1.5 meters. The shoots are often densely covered with fine white tufts of hair, but sometimes they are completely bald. There are four to ten (rarely three) very noticeable ribs that are not divided into cusps. The large areoles stand close together, but do not merge. The spike is variable. Spines may be present or may be missing entirely. The funnel-shaped, large flowers are yellow or yellow with a red throat. They appear at the top of the shoots and open during the day. The pericar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrophytum Capricorne
''Astrophytum capricorne'', the goat's horn cactus, is a species of flowering plant in the cactus family Cactaceae, that is native to the Coahuila regions of Northern Mexico. Growing to tall by wide in a ball or oval shape, it is grey-green in colour with 7 to 9 prominent ribs, very long twisted spines and yellow flowers with a red centre in summer. The common name of goat's horn cactus corresponds to the species identifier ''capricorne'' (''capri'' meaning “goat” and ''corne'' meaning “horn”) referring to the curved spines that are said to resemble a goat's horns. This species is designated as of "least concern" by the IUCN as it is widely distributed in the Chihuahuan desert. Cultivation This species is grown, typically from seed, as an ornamental plant as it produces large, attractive yellow flowers with red central regions. Some cultivars bear white flecking on the plant body while others lack this feature. Though tolerant of cold temperatures, it must be grown in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrophytum Asterias
''Astrophytum asterias'' is a species of cactus in the genus '' Astrophytum'', and is native to small parts of Texas in the United States and Mexico. Common names include sand dollar cactus, sea urchin cactus, star cactus and star peyote. Description ''A. asterias'' (also known as the Star Cactus) is small, round, spineless and squat, reaching a height of and a diameter of . The disc-shaped body is divided into 7–10 sections, known as ribs; in the middle of each rib there are woolly areoles.Anderson, E.F., Arias Montes, S. & Taylor, N.P. (1994) Threatened Cacti of Mexico. Royal Botanic Gardens, Kew. - via ARKive The body is a greenish-brown colour and may appear speckled from its covering of white scales (trichomes). The flowers of this cactus are yellow with red bases and the outer parts are very woolly. Green to pink oval fruits are produced; the outside coat is covered with woolly hairs. Biology Reproduction takes place via sexual outcrossing through cross-polli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrophytum Myriostigma
''Astrophytum myriostigma'', the bishop's cap cactus, bishop's hat or bishop's miter cactus, is a species of cactus native to the highlands of northeastern and central Mexico. Synonyms include ''Echinocactus myriostigma'', ''Astrophytum prismaticum'', ''A. columnare'', ''A. tulense'', and ''A. nuda''. Morphology ''Astrophytum myriostigma'' is a spineless cactus defined by the presence of three to seven (usually five) pronounced vertical ribs which define the cactus' shape when young (the genus name "astrophytum", literally, "star plant", is derived from the resulting star-like shape). As the cactus ages, more ribs may be added and it becomes more cylindrical in shape, growing up to about tall and in diameter. In the wild, globose to cylindrical stem is covered with a whitish flocking of trichomes. Some horticultural varieties lack the flocking. Life cycle In the wild, the cacti flower in early spring, so that their seeds can grow with summer rains. In cultivation this diffe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
