Leaves: blade 0.9–2 × 0.7–2 cm. Flowers yellow-green, green, or reddish purple; pedicels 2 m; sepals 2–3 × 0.5–1.5 mm; petals 1.5–2.5 × 0.5–1 mm; lip 3–4 × 1–1.5 mm. 2n = 36, 38, 40, 42.


Phenology: Flowering late May–Aug.
Habitat: Mountainous regions in mossy, damp, coniferous or mixed coniferous-hardwood forests, sphagnum bogs and evergreen swamps, and subacid humus in moist woodlands
Elevation: 0–1200 m

Distribution

V26 1200-distribution-map.jpg

Greenland, St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Conn., D.C., Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., Vt., Va., W.Va., Wis., Europe, Asia (Japan), Iceland

Discussion

Selected References

None.

Lower Taxa

None.
42 +, 40 +, 38 +  and 36 +
self-pollination +
acute +, obtuse +  and mucronate +
not +  and expanded +
Lawrence K. Magrath +  and Ronald A. Coleman +
(Linnaeus) R. Brown +
Ophrys cordata +
indehiscent +
not +  and articulate +
conduplicate +  and plicate +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
2 cm20 mm <br />0.02 m <br /> (3.8 cm38 mm <br />0.038 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (2 cm20 mm <br />0.02 m <br />) +
deltate +  and ovate-cordate +
0.7 cm7 mm <br />0.007 m <br /> (2 cm20 mm <br />0.02 m <br />) +
5 cm50 mm <br />0.05 m <br /> (?) +
subglobose +
4 cm40 mm <br />0.04 m <br /> (?) +
Greenland +, St. Pierre and Miquelon +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Conn. +, D.C. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, Vt. +, Va. +, W.Va. +, Wis. +, Europe +, Asia (Japan) +  and Iceland +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
1 cm10 mm <br />0.01 m <br /> (?) +
0–1200 m +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
3-merous +, sessile +  and pedicellate +
reddish purple +, green +  and yellow-green +
horizontal +  and semierect +
glabrate;glandular-pubescent +
subglobose;ovoid;subglobose;ovoid;ellipsoid +
Mountainous regions in mossy, damp, coniferous or mixed coniferous-hardwood forests, sphagnum bogs and evergreen swamps, and subacid humus in moist woodlands +
lateral +  and terminal +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
falcate +, ovate-oblong +  and oblongelliptic +
subopposite +  and opposite +
cauline +  and basal +
reduced +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
not +  and deflexed +
linear-oblong +
larger +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.15 cm1.5 mm <br />0.0015 m <br /> (?) +
differing in form and color +
1-many-flowered +  and cymose +
pendent +  and erect +
2 cm20 mm <br />0.02 m <br /> (?) +
glabrate +  and glandular-puberulent +
elliptic to oblong-linear +
1.5mm;2.5mm +
spreading +  and reflexed +
falcate;linear-oblong;lanceolate or elliptic +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Flowering late May–Aug. +
in W. Aiton and W. T. Aiton, Hortus Kew. +
2-100-flowered +
glabrate +  and glandular-puberulent +
aerial +  and subterranean +
slender +
minute +
free +, distinct +, adnate +  and connate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
foliaceous +
not +  and alike +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Illustrated +
branched +, or +  and simple +
green +  and reddish purple +
pendent +  and erect +
proliferous +
slender +  and stout +
succulent +
concave +  and convex +
Bifolium cordatum +, Diphryllum cordatum +, Distomaea cordata +, Neottia cordata +  and Pollinirhiza cordata +
Listera cordata var. cordata +
Listera cordata +
variety +
aquatic +, lithophytic +, terrestrial +  and epiphytic +
saprophytic +, photosynthetic +  and mycotrophic +