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Xylorhiza tortifolia (Torr. & A. Gray) Greene

Brief Summary

    Xylorhiza tortifolia: Brief Summary
    provided by wikipedia

    Xylorhiza tortifolia is a species of flowering plant in the aster family, known by the common names Mojave-aster and Mojave woodyaster.

Comprehensive Description

Morphology

    Description
    provided by eFloras
    Subshrubs, 20–60(–80) cm. Stems branched mostly in proximal 3 / 4 , ± piloso-villous, stipitate-glandular. Leaf blades lanceolate to elliptic-oblong or oblanceolate, 3–20(–25) mm wide, bases often subclasping or sometimes attenuate and not clasping, margins flat, sharply spinulose-toothed, faces loosely villous or glabrous, stipitate-glandular. Peduncles 5–25 cm. Involucres 12–20 × 15–20(–30) mm. Ray florets (15–)18–60(–85); corollas usually lavender, seldom white. Style-branch appendages shorter than stigmatic lines.

Diagnostic Description

    Synonym
    provided by eFloras
    Haplopappus tortifolius Torrey & A. Gray, Boston J. Nat. Hist. 5: 109. 1845 (as Aplopappus); Machaeranthera tortifolia (Torrey & A. Gray) Cronquist & D. D. Keck