Difference between revisions of "Spiranthes porrifolia"
Gen. Sp. Orchid. Pl., 467. 1840.
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|publication title=Gen. Sp. Orchid. Pl., | |publication title=Gen. Sp. Orchid. Pl., | ||
|publication year=1840 | |publication year=1840 | ||
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|subfamily=Orchidaceae subfam. Orchidoideae | |subfamily=Orchidaceae subfam. Orchidoideae | ||
|tribe=Orchidaceae tribe Cranichideae | |tribe=Orchidaceae tribe Cranichideae | ||
Latest revision as of 21:11, 5 November 2020
Plants 15–60 cm. Roots few–several, spreading to descending, tuberous, mostly to 1 cm diam. Leaves persisting through anthesis or fugaceous, basal, often on proximal portion of stem, ascending, linear to linear-lanceolate, linear-oblanceolate, oblanceolate or elliptic, to 34 × 3.5 cm. Spikes usually very tightly spiraled, rarely loosely spiraled, usually 3 flowers per cycle of spiral; rachis glabrous to sparsely pubescent, trichomes less (usually much less) than 0.18 mm, capitate glands often sessile. Flowers ascending, creamy to markedly yellowish, slenderly tubular; sepals connate at base, 4.6–11 mm, apex reflexed-spreading; petals linear-lanceolate to linear-oblanceolate, apex reflexed-spreading, obtuse to subacute or subemarginate; lip lance-ovate to lanceolate, 4–9.5 × 1.9–4.3 mm, apex recurved less than to scarcely more than apices of sepals and petals, only slightly or not at all dilated, with subapical dense cushion of peg-shaped trichomes on adaxial surface; veins few to several, branches wide-spreading or often parallel; viscidia linear to linear-elliptic; ovary mostly 2–7.5 mm. Seeds monoembryonic. 2n = 44 [66].
Phenology: Flowering May–Aug.
Habitat: Moist to wet riparian meadows, stream banks, marshes, fens, seeping banks
Elevation: 100–2600 m
Distribution
Calif., Idaho, Nev., Oreg., Wash.
Discussion
Selected References
None.