Difference between revisions of "Platanthera leucophaea"
Gen. Sp. Orchid. Pl., 294. 1835.
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|name=Orchis leucophaea | |name=Orchis leucophaea | ||
|authority=Nuttall | |authority=Nuttall | ||
| + | |rank=species | ||
|publication_title=Trans. Amer. Philos. Soc., n. s. | |publication_title=Trans. Amer. Philos. Soc., n. s. | ||
|publication_place=5: 161. 1834 | |publication_place=5: 161. 1834 | ||
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|name=Habenaria leucophaea | |name=Habenaria leucophaea | ||
|authority=(Nuttall) A. Gray | |authority=(Nuttall) A. Gray | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Orchidaceae;Orchidaceae subfam. Orchidoideae;Orchidaceae tribe Orchideae;Orchidaceae (tribe Orchideae) subtribe Orchidinae;Platanthera;Platanthera leucophaea | |hierarchy=Orchidaceae;Orchidaceae subfam. Orchidoideae;Orchidaceae tribe Orchideae;Orchidaceae (tribe Orchideae) subtribe Orchidinae;Platanthera;Platanthera leucophaea | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Platanthera leucophaea | name=Platanthera leucophaea | ||
| − | |||
|authority=(Nuttall) Lindley | |authority=(Nuttall) Lindley | ||
|rank=species | |rank=species | ||
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|publication year=1835 | |publication year=1835 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V26/V26_1155.xml |
|subfamily=Orchidaceae subfam. Orchidoideae | |subfamily=Orchidaceae subfam. Orchidoideae | ||
|tribe=Orchidaceae tribe Orchideae | |tribe=Orchidaceae tribe Orchideae | ||
Revision as of 21:45, 16 December 2019
Plants 32–112 cm. Leaves several to many, ascending, scattered along stem, imperceptibly reduced to bracts distally; blade lanceolate to ovate-lanceolate, usually to 20 × 4 cm. Spikes lax to moderately dense. Flowers resupinate, showy, corolla white, calyx green to whitish green; lateral sepals porrect; petals obovate to rarely flabellate, apically lacerate; lip descending to horizontally projecting, deeply 3-lobed, without basal thickening, 14–22 × 15–29 mm, distal margins of lobes deeply incised, fringed, lateral lobes flabellate, usually broad, overlapping middle lobe, middle lobe flabellate, sometimes very broadly, emarginate; spur slenderly clavate, 28–47 mm; rostellum lobes nearly parallel, directed downward, short, rounded; pollinaria geniculate; pollinia directed forward (column appearing hooded), remaining enclosed in anther sacs; viscidia orbiculate; ovary slender, mostly 15–30 mm. 2n = 42.
Phenology: Flowering Jun–Aug.
Habitat: Mesic to wet prairies, marshes, fens, lake shores, old fields
Elevation: 80–300 m
Distribution
Ont., Ill., Ind., Iowa, La., Maine, Mich., Mo., Nebr., N.J., N.Y., Ohio, Okla., Va., Wis.
Discussion
Of conservation concern.
A very rare hybrid with Platanthera psycodes, known only from Ontario, is P. ×reznicekii Catling, Brownell & G. Allen.
See the discussion under 22. Plantanthera praeclara.
Selected References
None.