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in biology, Haworthia Cymbiformis (Latin:Haworthia cymbiformis (Haw.) Duval) is a species of Haworthia from the eastern Cape Province. it is a small succulent that forms stemless rosettes of thick fleshy pale green leaves with dark longitudinal stripes and transparent tips. It offsets profusely to form attractive clusters. The rosettes grow up to 3 inches (8 cm) tall and 4 inches (10 cm) in diameter. Leaves are boat-shaped, up to 2 inches (5 cm) long and 0.8 inches (2 cm) wide. Flowers are tubular, white to very pale pink with brownish-green veins and appear on slender, up to 8 inches (20 cm) tall inflorescences from mid-spring to early summer. These plants are able to grow relatively fast, with the growth rate greatly influenced by factors such as water availability, supplementary feeding and suitability of the environment.
The native range of this species is S. & SE. Cape Prov. It is a succulent perennial and grows primarily in the subtropical biome.
Roots: Superficial.
Stem: Stemless or shortly caulescent.
Rosette: Stemless, dense, 20–25 leafed, 3-10 cm in diameter.
Leaves: Succulent, soft, very juicy, obovate, boat-shaped, acute, 2-4(-5) cm long, up to 2 cm broad, 4-5 mm thick, upper surface slightly concave or sometime slightly convex, rounded on the back, prominently keeled upwards, not distinctly aristate (terminal bristle 1-5 mm long) , margin and keel smooth, sometime slightly serrated near the tips, green, bluish-green to greenish-grey, yellowish-green, turning yellow or orange red in full sun, marked especially in the upper half with indistinct anastomosing vertical achlorophyllous lines forming a translucent surface with ample irregular areas free of pigmentation known as windows (Some other genus such as Fenestraria also have transparent leaf tips). In the wild, the sun is very bright, and the plant grows mostly buried by sand with only these transparent tips above the ground. The greater part of the leaf, the cone mantle, is not exposed directly to the sun since the leaf is embedded into the soil, but receive the light incident on the windows transmitted trough the colourless water storage tissue to the assimilatory tissue located in the underground base of the leaf.
Flowers: Relatively inconspicuous whitish/greenish with a light pinkish-brown keel, peduncle simple, 15 cm long; raceme lax, 15 long; lower pedicels 4-6 mm long; bracts small, ovate; perianth 2 cm long; segments nearly as long as the tube.
Blooming season: Spring to summer.
Chromosome number: n = 7.
The natural range of this species is roughly between Port Elizabeth and East London in Eastern Cape Province, South Africa.
This range closely matches that of its relative, Haworthia cooperi. H.cymboformis grows on cliffs and H.cooperi grows on lowland plains.
This is a summer rainfall region.
The specific epithet "cymbiformis" means "boat-shaped." It derives from the Latin words "cymba," meaning "boat," and "formis," meaning "having the form of," and refers to the way the leaves curve inward and come to a point.
This species is native to South Africa. It occurs on rocky slopes along rivers and streams from Port Elizabeth to East London in the Eastern Cape Province.
This plant is currently Red Listed as Least Concern (LC) and is not endangered.
The variety list below is adapted from WCSP as of February 2018.
Haworthia cymbiformis var. angustata Poelln.
Haworthia cymbiformis var. cymbiformis (autonym)
Haworthia cymbiformis var. incurvula (Poelln.) M.B.Bayer
Haworthia cymbiformis var. obtusa (Haw.) Baker
Haworthia cymbiformis var. ramosa (G.G.Sm.) M.B.Bayer
Haworthia cymbiformis var. setulifera (Poelln.) M.B.Bayer
Aloe cymbiformis Haw.
Catevala cymbiformis (Haw.) Kuntze