Platanthera flava |
Platanthera sparsiflora |
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few-flowered rein orchid, sparse-flowered bog orchid |
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Stems | 25–65 cm tall. |
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Leaves | cauline, 4–10, oblong to elliptic-lanceolate, 9–18 × 0.5– 2 cm, green through anthesis; lower leaves clasping stem; upper leaves becoming bracts within the inflorescence. |
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Inflorescences | loosely 20–40-flowered. |
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Flowers | more or less spreading, green; dorsal sepal ovate-elliptic, 5–7.5 × 4–6 mm; lateral sepals elliptic-lanceolate and oblique, 6–10 × 3–4 mm; petals lanceolate; sickle-shaped, 6–8 × 3–4.5 mm; lip linear-elliptic to lanceolate, 6–14 × 1.5–3 mm, descending to slightly recurved; spur cylindrical and tapering; as long or longer than lip. |
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2n | =42. |
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Platanthera flava |
Platanthera sparsiflora |
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Distribution | ||
Discussion | Wet meadows, roadside ditches, stream sides, fens, seeps, springs. Flowering May–Aug. 0–1900m. Casc, CR, ECas, Est, Sisk. CA, NV; southeast to NM, south to Mexico. Native. |
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Source | Flora of Oregon, volume 1, page 328 James Riser |
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Sibling taxa | ||
Synonyms | Habenaria dilatata, Habenaria sparsiflora, Habenaria sparsiflora var. laxiflora, Habenaria sparsiflora var. sparsiflora, Limnorchis sparsiflora | |
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