Asclepias meadii Torr.
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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
Apocynaceae
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Scientific Name
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Description
Species Description - Simple, 3–6 dm; lvs 3–5 pairs, lance-ovate, 5–8 cm, acute or obtuse and mucronate, rounded to the sessile base, scabrous-ciliolate, otherwise glabrous; umbel solitary, terminal, few-fld; peduncle 5–15 cm; cor greenish-white, its lobes 8–10 mm; hoods purple, much distended at base; 5–7 mm, the lateral margins with an obtuse tooth near the middle; horns subulate, incurved, shorter than the hood. Prairies; originally from c. Ill. and c. Mo. to e. Kans., with outlying sites in ne. Ind., s. Wis., and se. Io.; now rare and restricted to Ill., Mo., and Kans. June, July.