Platanthera integrilabia |
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monkeyface, white fringeless orchid |
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Habit | Plants 50–80 cm. |
Leaves | 2(–3), spreading to ascending, on basal portion of stem, abruptly reduced to bracts distally; blade lanceolate to elliptic, 12–23 × 1–3.2 cm. |
Spikes | rather lax. |
Flowers | resupinate, showy, white; lateral sepals reflexed; petals oblong, margins entire; lip porrect, spatulate to lance-spatulate, without basal thickening, 10–15 × 2.5–4 mm, margins slightly lacerate to subentire; spur slenderly cylindric, scarcely clavate, 35–60 mm; rostellum lobes directed forward, spreading, angular; rostellum lobes slenderly curving forward, slightly spreading, angular-elongate, long; pollinaria with stalks curved forward; pollinia remaining enclosed in anther sacs; viscidia orbiculate; ovary slender, ca.16–22 mm. |
Platanthera integrilabia |
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Phenology | Flowering (Jun–)Jul–Aug. |
Habitat | Wet wooded flats, seeping slopes, marshes, sphagnum bogs |
Elevation | mostly 100–700 m (mostly 300–2300 ft) |
Distribution |
AL; GA; KY; MS; NC; SC; TN
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Discussion | Of conservation concern. The description of Platanthera integrilabia is based on a limited sample and is likely too restrictive. Flowers of this species are nocturnally sweet-scented. The vegetative habit is distinctive, with leaves restricted to the base of the stem and a relatively few-flowered inflorescence borne atop a tall bracted scape. In addition to the normal tuberoid, roots often enlarge distally to form bud-bearing tuberoids at a marked distance from the parent stem, giving rise to diffuse clonal colonies. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 568. |
Parent taxa | Orchidaceae > subfam. Orchidoideae > tribe Orchideae > subtribe Orchidinae > Platanthera |
Sibling taxa | |
Synonyms | Habenaria blephariglottis var. integrilabia, Habenaria correlliana |
Name authority | (Correll) Luer: Native Orchids U.S. & Canada, 186. (1975) |
Web links |