Flora of North America species comparison

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Platanthera peramoena

purple fringeless orchid
Habit Plants 35–105 cm.
Leaves

2–5, spreading to ascending, scattered along stem, gradually reduced to bracts distally;

blade lanceolate, elliptic, oblong-elliptic, or oblance-oblong, 7–27 × 1.2–5 cm.
Spikes

lax to dense.
Flowers

resupinate, showy, rose-purple;

lateral sepals somewhat reflexed;

petals oblong-linear to spatulate, distally crenate to entire;

lip descending to somewhat porrect, deeply 3-lobed, without basal thickening, 11–20 × 12–23 mm, distal margins of lobes dentate-lacerate, rarely nearly entire, lateral lobes narrowly cuneate, middle lobe broadly cuneate-flabellate, emarginate to 2-fid;

spur clavate, 20–30 mm;

rostellum lobes directed forward, spreading, angular;

pollinaria straight to geniculate;

pollinia directed forward;

viscidia orbiculate;

ovary slender, 13–23 mm.

Platanthera peramoena
Phenology Flowering (Jun–)Jul–Aug(–Oct).
Habitat Alluvial forests, wet wooded flats, stream banks, seeping slopes, marshes, moist prairies, old fields and pastures, ditches, thickets
Elevation 0–800 m (0–2600 ft)
Distribution
from FNA
AL; AR; DE; GA; IL; IN; KY; MD; MO; MS; NC; NJ; OH; PA; SC; TN; VA; WV
[WildflowerSearch map]
Source FNA vol. 26, p. 565.
Parent taxa 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. praeclara, P. psycodes, P. purpurascens, P. sparsiflora, P. stricta, P. tipuloides, P. zothecina
Synonyms Habenaria peramoena
Name authority (A. Gray) A. Gray: Manual, 473. (1848)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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