Cypripedium arietinum R.Br.
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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
Orchidaceae
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Scientific Name
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Description
Species Description - Stem slender, 1–4 dm, thinly hairy, with 2–3 sheathing scales below and 3–5 sessile lvs above the middle; lf-blades lanceolate to elliptic, often folded, 5–10 cm, finely ciliate, otherwise glabrous; fl solitary; sep and lateral pet 1.5–2.5 cm, greenish-brown, the upper sep lanceolate, the lower 2 sep separate, linear, the lateral pet lance-linear; lip whitish, strongly red-veined, 1.5–2.5 cm, prolonged downward to form a conical pouch. Moist, usually acid soils in coniferous woods; Que. to Man., s. to Mass., N.Y., Mich. and Minn. May, June.
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Common Names
ram's head lady-slipper