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 | |
|
Hemizonia arida D.D.Keck | |
Deiandra arida (formerly Hemizonia arida),[1] also called Red Rock tarplant, is a rare annual plant in the Sunflower family (Asteraceae).[2]
Habitat and range
It occurs on clay and volcanic soils and in desert dry wash from 1,000' to 3,000'.[2] It is known from only 10 sites in the Red Rock Canyon State Park area of the Mojave Desert.[2]
Growth pattern
It is a branched annual growing from 1' to 3'.[2]
Leaves and stems
Lowere leaves are inversely lanceolate and hairless, with toothed margins.[2] Upper leaves are without teeth (entire) at the outside edge, and are covered in sparse, short, stiff hairs, giving it a bristly feel.[2]
Flowers and fruits
Flower heads grow in flat topped clusters at the tops of stems.[2] Flower heads have 18-25 yellow disk flowers, with 5-10 ray flowers. Bristly phyllaries halfway enclose the akenes.[2]