Platanthera clavellata |
Platanthera blephariglottis |
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little club-spur bog-orchid, small green wood orchid |
white fringe orchid, white-fringe bog-orchid |
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Habit | Plants 8–47 cm. | Plants 8–110 cm. | ||||
Leaves | 1(–2), on basal half of stem, ascending to spreading, usually abruptly reduced to bracts distally; blade oblanceolate to oblong, linear-oblong, or elliptic, 3–19 × 0.8–3.5 cm. |
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. |
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Spikes | moderately dense. |
dense to rather lax. |
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Flowers | resupinate, often incompletely so and held at angle, not showy, rather inconspicuous pale green to dull yellowish green; lateral sepals porrect; petals ovate to obovate; lip oblong, obscurely 3-lobed, without basal thickening, 3–7 × 3–4 mm, margins sometimes dentate-lacerate, apex truncate; spur clavate, 7–13 mm; rostellum lobes directed downward, very short, truncate; pollinaria straight or slightly curved laterally; pollinia fragmenting, pollen masses trailing down onto stigma; viscidia linear to linear lanceolate; ovary rather stout, 6–11 mm. |
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. |
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2n | = 42. |
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Platanthera clavellata |
Platanthera blephariglottis |
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Phenology | Flowering summer (Jun–Aug). | |||||
Habitat | Sphagnum bogs, sphagnous seeps and meadows, wet sandy and peaty meadows, marshes, low woods, wet prairies, and roadsides | |||||
Elevation | 0–2000 m (0–6600 ft) | |||||
Distribution |
AL; AR; CT; DC; DE; FL; GA; IA; IL; IN; KY; LA; MA; MD; ME; MI; MN; MS; NC; NH; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV; NB; NF; NS; ON; PE; QC
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e North America
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Discussion | In common with Platanthera nivea and P. integra, the column of P. clavellata bears a series of lateral projections that are directed forward; the upper pair is elaborately adorned and may be glandular. It appears that this species is inappropriately placed in Platanthera. See note under 30. P. nivea. The broader leaves cited as distinguishing Platanthera clavellata var. ophioglossoides are more prevalent in the North, but occur throughout the range of the species. In some areas populations commonly display a complete range of leaf shape; this feature alone is of no taxonomic significance. The unusual and infrequent hybrid Platanthera blephariglottis × P. clavellata is P. ×vossii Case. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 26, p. 570. | FNA vol. 26, p. 567. | ||||
Parent taxa | Orchidaceae > subfam. Orchidoideae > tribe Orchideae > subtribe Orchidinae > Platanthera | Orchidaceae > subfam. Orchidoideae > tribe Orchideae > subtribe Orchidinae > Platanthera | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Orchis clavellata, Habenaria clavellata, Habenaria clavellata var. ophioglossoides | Orchis blephariglottis, Habenaria blephariglottis | ||||
Name authority | (Michaux) Luer: Native Orchids Florida, 148. (1972) | (Willdenow) Lindley: Gen. Sp. Orchid. Pl., 291. (1835) | ||||
Web links |