Deinandra arida

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Deinandra arida
Scientific classification
Kingdom:
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Species:
D. arida
Binomial name
Deiandra arida
(D.D.Keck) B.G.Baldwin
Synonyms [1]

Hemizonia aridaD.D.Keck

Deiandra arida (formerly Hemizonia arida), [2] also called Red Rock tarplant, is a rare California annual plant in the (sunflower family). [3]

Contents

Habitat and range

Deiandra arida occurs on clay and volcanic soils and in desert dry wash from 1,000-3,000 feet (300–900 m) in elevation. [3] It is known from only 10 sites in the Red Rock Canyon State Park area of the Mojave Desert in Kern County, California. [3] [4] [5]

Growth pattern

It is a branched annual growing from 1' to 3' (30–90 cm) tall. [3]

Leaves and stems

Lower leaves are inversely lanceolate and hairless, with toothed margins. [3] Upper leaves are without teeth (entire) at the outside edge, and are covered in sparse, short, stiff hairs, giving it a bristly feel. [3]

Flowers and fruits

Flower heads grow in flat-topped clusters at the tops of stems. [3] Flower heads have 18-25 yellow disk flowers, with 5-10 yellow ray flowers. Bristly phyllaries halfway enclose the akenes. [3]

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References