Deinandra arida | |
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Scientific classification
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Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Deinandra |
Species: | D. arida
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Binomial name | |
Deinandra arida (D.D.Keck) B.G.Baldwin
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Synonyms [2] | |
Hemizonia arida D.D.Keck |
Deiandra arida (formerly Hemizonia arida), [3] also called Red Rock tarplant, is a rare California annual plant in the family Asteraceae. [4]
Deiandra arida occurs on clay and volcanic soils and in desert dry wash from 1,000-3,000 feet (300–900 m) in elevation. [4] It is known from only 10 sites in the Red Rock Canyon State Park area of the Mojave Desert in Kern County, California. [4] [5] [6]
It is a branched annual growing from 1' to 3' (30–90 cm) tall. [4]
Lower leaves are inversely lanceolate and hairless, with toothed margins. [4] Upper leaves are without teeth ( entire) at the outside edge, and are covered in sparse, short, stiff hairs, giving it a bristly feel. [4]
Flower heads grow in flat-topped clusters at the tops of stems. [4] Flower heads have 18-25 yellow disk flowers, with 5-10 yellow ray flowers. Bristly phyllaries halfway enclose the akenes. [4]