Listera cordata (L.) 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 - Stems 1–2.5 dm; lvs 1–3 cm, shorter than the peduncle, truncate or subcordate at base, but also abruptly contracted at the point of insertion; axis, pedicels, and ovary glabrous; bracts minute, 1 mm; fls up to ca 25, green to purple or red; sep and lateral pet 2–2.5 mm, ovate oblong; lip 3–5 mm, with 2 projecting lateral teeth near the base, cleft to the middle or below into divergent linear lobes; column 0.5 mm. Deep wet woods and sphagnum-bogs; circumboreal, s. in Amer. to N.Y., Pa., Mich., and Minn., and in the mts. to N.C. and N.M. June, July. (Ophrys c.)
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Common Names
heart-leaved twayblade