Difference between revisions of "Spiranthes brevilabris"
Gen. Sp. Orchid. Pl., 471. 1840.
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|place=471. 1840 | |place=471. 1840 | ||
|year=1840 | |year=1840 | ||
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
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|name=Spiranthes gracilis var. brevilabris | |name=Spiranthes gracilis var. brevilabris | ||
|authority=(Lindley) Correll | |authority=(Lindley) Correll | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Orchidaceae;Orchidaceae subfam. Orchidoideae;Orchidaceae tribe Cranichideae;Orchidaceae (tribe Cranichideae) subtribe Spiranthinae;Spiranthes;Spiranthes brevilabris | |hierarchy=Orchidaceae;Orchidaceae subfam. Orchidoideae;Orchidaceae tribe Cranichideae;Orchidaceae (tribe Cranichideae) subtribe Spiranthinae;Spiranthes;Spiranthes brevilabris | ||
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name=Spiranthes brevilabris | name=Spiranthes brevilabris | ||
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|authority=Lindley | |authority=Lindley | ||
|rank=species | |rank=species | ||
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|publication title=Gen. Sp. Orchid. Pl., | |publication title=Gen. Sp. Orchid. Pl., | ||
|publication year=1840 | |publication year=1840 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V26/V26_1086.xml |
|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 7–40 cm. Roots few, spreading to descending, mostly to 0.5 cm diam., slender. Leaves usually persisting through anthesis, 3–5, basal, spreading, oval-oblanceolate, 2–6 × 1–2 cm. Inflorescences: spikes secund to loosely spiraled, 8–10 flowers per cycle of spiral; rachis densely pubescent, some trichomes capitate to clavate, glands obviously stalked. Flowers cream to pale yellow; sepals distinct to base, 5 × 1 mm; lateral sepals appressed; petals linear to lance-oblong, 5 × 1 mm, apex acute to obtuse; lip yellow centrally, ovate to oblong, 5 × 2.5 mm, apex dilated, yellow, pubescent, apical margin crisped, finely lacerate; veins several, branches very short; basal calli long-pointed, mostly to 1 mm; viscidium linear-lanceolate; ovary mostly 3 mm. Seeds monoembryonic.
Phenology: Flowering Feb–Apr.
Habitat: Dry to moist roadsides and fields
Elevation: 0–100 m
Distribution
Ala., Fla., Ga., La., Miss., Tex.
Discussion
Spiranthes brevilabris and S. floridana are often and easily confused, although the degree of pubescence is an excellent diagnostic tool in the field.
This species has dramatically declined, with only a single extant population known in 1998–2000.
Selected References
None.