Difference between revisions of "Eriophorum brachyantherum"
in A. T. von Middendorff, Reise Siber. 1(2, 3): 98. 1856.
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|genus=Eriophorum | |genus=Eriophorum | ||
|species=Eriophorum brachyantherum | |species=Eriophorum brachyantherum | ||
Revision as of 20:08, 24 September 2019
Plants cespitose. Culms terete or nearly so, 20–70 cm, smooth. Leaves: bladeless sheaths 1–3, evenly distributed on culm, distal to middle, not inflated distally, filiform, channeled, 0.4–1.2 mm wide. Inflorescences: involucral bracts absent. Spikelets solitary, erect, globose, 10–20 mm in flower, 20–35 mm in fruit; proximal empty scales usually 7 or more, ascending, blackish, ovate-lanceolate, 5–10 mm, thin, margins broad, ribless, midrib not reaching tip. Flowers: perianth bristles usually more than 8, creamy white to pale brown, 10–20 mm; anthers 0.5–2 mm. Achenes oblanceoloid, (1.8–)2–2.3(–2.7) × 0.5–1.2 mm; apex minutely apiculate, 0.1 mm. 2n = 58.
Phenology: Fruiting summer.
Habitat: Bogs, fens, tundra, muskeg, wet soils
Elevation: 0–1500 m
Distribution
Alta., B.C., Man., Nfld. and Labr., N.W.T., Nunavut, Ont., Que., Sask., Yukon, Alaska, Eurasia.
Discussion
Eriophorum brachyantherum var. pellucidum Lepage is ca. 30 cm with narrowly oblong achenes (2.5–2.7 mm). It is known from only a single station (Rupert House, Quebec) and may be a hybrid between E. brachyantherum and E. vaginatum subsp. spissum. Further study is needed to determine the status of this plant.
Selected References
None.