Platanthera blephariglottis

(Willdenow) Lindley

Gen. Sp. Orchid. Pl., 291. 1835.

Basionym: Orchis blephariglottis Willdenow Sp. Pl. 4(1): 9. 1805
Synonyms: Habenaria blephariglottis (Willdenow) Hooker
Treatment appears in FNA Volume 26. Treatment on page 567. Mentioned on page 552, 564, 568, 569, 571.
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Plants 8–110 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. Spikes dense to rather lax. 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.


Varieties 2 (2 in the flora).

Selected References



1 Spur less than 26 mm, to 1.25 times length of ovary. Platanthera blephariglottis var. blephariglottis
1 Spur at least 30 mm, commonly about 2 times length of ovary. Platanthera blephariglottis var. conspicua