Xylorhiza tortifolia
| Xylorhiza tortifolia | |
|---|---|
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| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Tribe: | Astereae |
| Genus: | Xylorhiza |
| Species: | X. tortifolia |
| Binomial name | |
| Xylorhiza tortifolia (Torr. & A.Gray) Greene | |
| Synonyms | |
|
Aster orcuttii | |
Xylorhiza tortifolia is a species of flowering plant in the aster family known by the common names Mojave-aster and Mojave woodyaster. It is native to the deserts of the southwestern United States, where it grows in canyons and other habitat. It is a perennial herb or subshrub with branching, hairy, glandular stems that reach 60 to 80 centimeters in length. The leaves are linear, lance-shaped, or oval, with pointed or spiny tips and spiny edges. The leaf surfaces are hairy and glandular. The inflorescence is a solitary flower head borne on a long peduncle. The head has a base with long, narrow phyllaries which may be over 2 centimeters long. The head contains up to 60 or more lavender, pale blue, or white ray florets which may be over 3 centimeters long. The fruit is an achene which may be over a centimeter long, including its pappus of bristles.
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