Asclepias longifolia Michx.
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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 - Slender, 3–6 dm; lvs numerous, linear, 8–15 cm, glabrous or nearly so; umbels 1–6, 10–30-fld, on peduncles 1–5 cm; pedicels with incurved hairs; cor pale greenish-white and tinted with purple, its lobes 5–6 mm; hoods as in no. 19 [Asclepias hirtella (Pennell) Woodson], but reaching just to the projecting angle of the anther-wings. Moist or wet pine-lands on the coastal plain; Del. to Fla. and La. July, Aug. (Acerates l.; A. floridana, misapplied)