Platanthera blephariglottis |
Platanthera integrilabia |
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white fringe orchid, white-fringe bog-orchid |
monkeyface, white fringeless orchid |
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Habit | Plants 8–110 cm. | Plants 50–80 cm. | ||||
Leaves | 2–several, spreading to ascending, scattered along stem, rather abruptly to gradually reduced distally; blade linear-lanceolate, ovate-lanceolate, elliptic-lanceolate, 5–35 × 1–5 cm. |
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. |
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Spikes | dense to rather lax. |
rather lax. |
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Flowers | resupinate, showy, white; lateral sepals reflexed; petals linear to oblanceolate, apex fringed to nearly entire; lip reflexed to porrect, without basal thickening, ovate-oblong to oblong-elliptic, rarely quadrangular-suborbiculate, margin fringed; spur essentially cylindric, slender; rostellum lobes curving forward, slightly spreading, angular-elongate; pollinaria with stalks curved forward; pollinia remaining enclosed in anther sacs; viscidia elliptic-suborbiculate to orbiculate; ovary slender, 10–28 mm. |
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. |
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Platanthera blephariglottis |
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 |
e North America
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AL; GA; KY; MS; NC; SC; TN
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
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Key |
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Source | FNA vol. 26, p. 567. | FNA vol. 26, p. 568. | ||||
Parent taxa | Orchidaceae > subfam. Orchidoideae > tribe Orchideae > subtribe Orchidinae > Platanthera | Orchidaceae > subfam. Orchidoideae > tribe Orchideae > subtribe Orchidinae > Platanthera | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Orchis blephariglottis, Habenaria blephariglottis | Habenaria blephariglottis var. integrilabia, Habenaria correlliana | ||||
Name authority | (Willdenow) Lindley: Gen. Sp. Orchid. Pl., 291. (1835) | (Correll) Luer: Native Orchids U.S. & Canada, 186. (1975) | ||||
Web links |