Lygodesmia rostrata (A.Gray) A.Gray
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Asteraceae
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Scientific Name
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Description
Species Description - Taprooted, glabrous annual to 8 dm, freely branched at least above; lvs linear, to 15 cm × 4 mm, the lower several pairs opposite, the others alternate, the uppermost reduced to linear bracts; heads terminating the branches; invol 12–17 mm, with 7 or 8 principal bracts; fls 8–11, the ligule lavender with white tip, 5–7 × 1 mm, ± erect; achenes columnar-fusiform, 8–10-ribbed, scabrellous near the tip; 2n=12. Open, sandy places; w. Io. to w. Minn., N.D., n. Tex., Wyo., and Utah. July–Sept. (Shinnersoseris r.)
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Common Names
annual skeleton-weed