Malvastrum hispidum (Pursh) Hochr.
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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
Malvaceae
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Scientific Name
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Description
Species Description - Erect, branching annual 2–5 dm, closely stellate, the hairs of the stem chiefly 4-armed, those of the lvs and cals often only 2–3-armed; lvs linear-oblong or oblong to lance-elliptic, seldom over 1 cm wide, remotely toothed; fls solitary in the axils; sep at maturity valvate-connivent, their margins turned outward, forming a 5-winged cal; pet yellow, 3–4.5 mm; mature carpels 5–6, thin-walled, beakless, minutely hairy; 2n=36. Dry ground, prairies, and barrens; Ky. and Tenn. to Io., Kans., and Okla. June–Sept. (M. angustum; Sphaeralcea angusta; Sidopsis hispida)