Deinandra arida

Deinandra arida
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Deinandra
Species: D. arida
Binomial name
Deiandra arida
(D.D.Keck) B.G.Baldwin
Synonyms[1]

Hemizonia arida D.D.Keck

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

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]

References

External links

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