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Montana Field Guide

Montana Field Guides

Heartleaf Twayblade - Listera cordata
Other Names:  Neottia cordata

Native Species

Global Rank: G5
State Rank: S5
C-value: 7

Agency Status


External Links

General Description
Stems 6–25 cm, glabrate. Leaves broadly cordate-ovate, 1–3 cm long. Inflorescence of 4 to 16 flowers; bracts ca. 1 mm long. Flowers sepals 2–3 mm long, lanceolate to oblong; lip petal declined, 4–5 mm long, Y-shaped with 2 acuminate, divergent lobes. Capsule globose 4–6 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions


Range Comments
Circumboreal south to CA, UT, NM, MI and NC (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 139

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)

Moist to wet forest, often growing in moss; valleys to subalpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Brackley, F.E. 1985. The Orchids of New Hampshire. Rhodora 87:1-117. A85BRA01PAUS
    • Case, F.W. Jr. 1987. Orchids of the Western Great Lakes Region. Cranbrook Institute of Science, Bloomfield Hills, Mich., USA. B87CAS01PAUS
    • Correll, D.S. 1950. Native Orchids of North America, North of Mexico. Chronica Botanica Company, Waltham, Mass. USA. B50COR01PAUS
    • Fernald, M. L. 1950. Gray's manual of botany. Eighth edition. A handbook of the flowering plants and ferns of the central and northeastern United States and Adjacent Canada. American Book Co., New York.
    • Gleason, H.A. 1952. New Britton & Brown. Illustrated Flora. Lancaster Press Inc. Lancaster, Pa. B52GLE01PAUS
    • Henry, L.K., W.E. Buker and D.L. Pearth. 1975. Western Pennsylvania Orchids. Castanea 40 (2):93-171.
    • Simanonok, M. 2018. Plant-pollinator network assembly after wildfire. Ph.D. Dissertation. Bozeman, MT: Montana State University. 123 p.
    • Voss, E.G. 1972. Michigan Flora Part I. Kingsport Press, Bloomfield Hills, Mich. B72VOS01PAUS
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Citation for data on this website:
Heartleaf Twayblade — Listera cordata.  Montana Field Guide.  .  Retrieved on , from