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lesser purple fringe bog-orchid, lesser purple fringe orchid, small purple-fringe orchid

yellow fringeless orchid

Habit Plants 14–101 cm. Plants 20–75 cm.
Leaves

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.

1–3, ascending to spreading, rather abruptly or gradually reduced to bracts distally;

blade lance-oblong to linear-lanceolate, 4.5–32 × 1–3 cm.

Spikes

lax to very dense.

dense.

Flowers

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.

resupinate, showy, pale yellow-orange to pale orange;

dorsal sepal entire or rarely apically dentate;

lateral sepals spreading;

petals elliptic to linear-oblong, margins entire;

lip descending, ovate-elliptic to obovate or oblong, 3–5 × 1.5–4 mm, margins eroded to lacerate or rarely entire, with basal pair of fleshy ridges on adaxial surface;

spur tapering from broad base to slender tube, 5–10 mm;

rostellum lobes curved downward, short, rounded;

pollinaria essentially straight; large pollinia protruding forward;

viscidia orbiculate to suborbiculate;

ovary slender to somewhat stout, 5–11 mm.

2n

= 42.

Platanthera psycodes

Platanthera integra

Phenology Flowering Jun–Aug(–Sep). Flowering Jul–Sep.
Habitat Alluvial and swamp forests, stream banks, riparian meadows, moist and seeping slopes, marshes, roadside banks, ditches, old fields Wet pine barrens, peaty depressions in pine savannas, wet sandy woods
Elevation 0–2000 m (0–6600 ft) 0–900 m (0–3000 ft)
Distribution
from FNA
CT; GA; IA; IL; IN; KY; MA; ME; MI; MN; NC; NH; NJ; NY; OH; PA; RI; TN; VA; VT; WI; WV; MB; NB; NF; NS; ON; PE; QC
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[BONAP county map]
from FNA
AL; DE; FL; GA; LA; MS; NC; NJ; SC; TN; TX
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[BONAP county map]
Discussion

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.)

As in Platanthera clavellata and P. nivea, the column of P. integra bears two pairs of lateral processes. In P. integra, the distal structures are essentially sessile and cushionlike, as in P. nivea, but the proximal are short, stout, clublike, and bear several stout horns. The tuberoids of P. integra are abruptly swollen into oblong-cylinders, somewhat like those of P. nivea. These three species evidently form a group apart from Platanthera. See note under 30. P. nivea.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 26, p. 565. FNA vol. 26, p. 571.
Parent taxa Orchidaceae > subfam. Orchidoideae > tribe Orchideae > subtribe Orchidinae > Platanthera Orchidaceae > subfam. Orchidoideae > tribe Orchideae > subtribe Orchidinae > Platanthera
Sibling taxa
P. aquilonis, P. blephariglottis, P. brevifolia, P. chapmanii, P. chorisiana, P. ciliaris, P. clavellata, P. convallariifolia, P. cristata, P. dilatata, P. flava, P. grandiflora, P. hookeri, P. huronensis, P. hyperborea, P. integra, P. integrilabia, P. lacera, P. leucophaea, P. limosa, P. macrophylla, P. nivea, P. obtusata, P. orbiculata, P. peramoena, P. praeclara, P. purpurascens, P. sparsiflora, P. stricta, P. tipuloides, P. zothecina
P. aquilonis, P. blephariglottis, P. brevifolia, P. chapmanii, P. chorisiana, P. ciliaris, P. clavellata, P. convallariifolia, P. cristata, P. dilatata, P. flava, P. grandiflora, P. hookeri, P. huronensis, P. hyperborea, P. integrilabia, P. lacera, P. leucophaea, P. limosa, P. macrophylla, P. nivea, P. obtusata, P. orbiculata, P. peramoena, P. praeclara, P. psycodes, P. purpurascens, P. sparsiflora, P. stricta, P. tipuloides, P. zothecina
Synonyms Orchis psycodes, Habenaria psycodes Orchis integra, Habenaria integra
Name authority (Linnaeus) Lindley: Gen. Sp. Orchid. Pl., 294. (1835) (Nuttall) A. Gray ex L. C. Beck: Bot. North. Middle States ed. 2, 348. (1848)
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