Platanthera huronensis
Platanthera psycodes
great lakes rein orchid, green bog orchid, Huron green orchid, Lake Huron bog green orchid, northern green bog-orchid
lesser purple fringe bog-orchid, lesser purple fringe orchid, small purple-fringe orchid
few–several, ascending, scattered along stem, gradually reduced to bracts distally;
blade oblong to linear-lanceolate, 5–30 × 0.6–7 cm.
2–5, wide-spreading, recurved to somewhat ascending, scattered along stem, gradually reduced to bracts distally;
blade lanceolate, oblong-elliptic, or oblong-obovate, 5–22 × 1.5–7 cm.
very lax to very dense.
lax to very dense.
resupinate, not showy but sometimes conspicuous, whitish green;
corolla often whiter than calyx;
lateral sepals spreading to slightly reflexed;
petals ovate- to lance-falcate, margins entire;
lip descending or apex adhering to dorsal sepal and petal apices, lanceolate to nearly linear, without basal thickening, 5–12 × 2–4 mm, base slightly to rather markedly rounded-dilated, margins entire;
spur slenderly cylindric to clavate, 4–12 mm, apex usually slenderly tapered;
rostellum lobes divergent, directed downward, very small, obscure, rounded;
pollinaria straight;
pollinia remaining enclosed in anther sacs;
viscidia oblong;
ovary rather slender to stout, mostly 6–15 mm.
resupinate, showy, lavender- to rose-purple, rarely white;
lateral sepals reflexed to somewhat spreading;
petals spatulate to broadly obovate or cuneate-oblong, margins dentate-lacerate to sparsely fringed;
lip descending to somewhat porrect, deeply 3-lobed, without basal thickening, 5–13 × 5–17 mm, distal margins of lobes fringed, sometimes deeply, lateral lobes often reflexed or slightly elevated above middle lobe, broadly to narrowly cuneate, middle lobe sometimes reflexed, broadly cuneate-flabellate, often emarginate to 2-fid;
spur slenderly cylindric to slightly clavate, 12–22 mm;
rostellum lobes nearly parallel, directed downward, short, rounded;
pollinaria nearly straight;
pollinia remaining enclosed within anther sacs;
viscidia suborbiculate to broadly elliptic;
ovary slender to stout, 9–16 mm.
= 84.
= 42.
Platanthera huronensis
Platanthera psycodes
Northwestern plants commonly treated as Platanthera hyperborea var. viridiflora (Chamisso) Kitamura (note Kitamura’s priority over Luer) are P. huronensis; Chamisso’s name furthermore is synonymous with P. stricta. Aleutian and coastal Alaskan plants are often short, stout, and broad-leaved, and they have incorrectly been referred to 9. P. convallariifolia.
Platanthera huronensis as here delimited does not auto-pollinate in the manner of P. aquilonis. Occasional plants and populations that may be referable to P. huronensis, however, exhibit the movement of pollinia typical of P. aquilonis. These plants might reflect infraspecific variation within an allotetraploid species, result from hybridization, or constitute a distinct taxon. The relationship of some of these plants to P. hyperborea needs study.
Platanthera huronensis is typically intensely fragrant with the sweet, pungent scent of some related species.
Platanthera huronensis is known to hybridize with P. dilatata; it may hybridize with other species as well. Although hybrids of P. dilatata and P. aquilonis may occur, the name traditionally used for them, P. ×media (Rydberg) Luer is a synonym of P. huronensis. See notes under 10. P. aquilonis and 8. P. hyperborea.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Platanthera psycodes is known to hybridize with P. lacera in the northeasternmost portion of its range, where the species bloom simultaneously. Such hybrids are known as P. ×andrewsii (M. White) Luer; see the discussion under P. lacera. A few specimens also suggest very rare hybridization with P. grandiflora.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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