Eriophorum scheuchzeri

Hoppe

Bot. Taschenb. 1800: 104, plate 7. 1800.

Common names: White cotton-grass linaigrette de Scheuchzer
Illustrated
Synonyms: Eriophorum altaicum Meinshausen Eriophorum capitatum Host Eriophorum scheuchzeri var. tenuifolium Ohwi
Treatment appears in FNA Volume 23. Treatment on page 25. Mentioned on page 21, 24.

Plants colonial from long-creeping rhizomes. Culms solitary or few together, 5–35 (–70) cm, usually not more than 1 mm diam. basally; basal sheaths persistent, brown or reddish, septate-nodulose. Leaves: blades channeled or strongly involute, 3–12 cm; distal leaves usually bladeless with black-tipped sheath. Inflorescences: involucre absent. Spikelets solitary, erect, broadly obovoid to subglobose in fruit, 8–12 (–40) mm; scales gray to blackish green; proximal empty scales not more than 7, ovate, 4–10 mm, midrib not reaching tip; distal scales narrower, more attenuate, margins hyaline, not more than 1 mm wide. Flowers: perianth bristles 10 or more, bright white, sometimes red-tinged, 15–30 mm, smooth; anthers 0.5–1.5 mm. Achenes narrowly oblong, 0.4–2.5 mm, apex with subulate beak. 2n = 58.


Phenology: Fruiting summer.
Habitat: Tundra, wet peat, marshy ground, peaty soils, riverbanks, lake and pond shores
Elevation: 0–3000 m

Distribution

V23 29-distribution-map.jpg

Greenland, Alta., B.C., Nfld. and Labr., N.W.T., Nunavut, Ont., Que., Sask., Yukon, Alaska, Colo., Mont., Utah, Wash., Wyo., Eurasia

Discussion

Eriophorum scheuchzeri var. tenuifolium Ohwi does not appear to be differentiated based on the North American specimens examined.

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Eriophorum scheuchzeri"
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Peter W. Ball +  and Daniel E. Wujek +
septate-nodulose +
subulate +
0 cm0 mm <br />0 m <br /> (25 cm250 mm <br />0.25 m <br />) +
involute +  and channeled +
3 cm30 mm <br />0.03 m <br /> (?) +  and 12 cm120 mm <br />0.12 m <br /> (?) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
parallel +  and divergent +
terete +, rolled +  and plicate +
White cotton-grass +  and linaigrette de Scheuchzer +
terete +  and trigonous +
5 cm50 mm <br />0.05 m <br /> (35 cm350 mm <br />0.35 m <br />) +
Greenland +, Alta. +, B.C. +, Nfld. and Labr. +, N.W.T. +, Nunavut +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Colo. +, Mont. +, Utah +, Wash. +, Wyo. +  and Eurasia +
0–3000 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Tundra, wet peat, marshy ground, peaty soils, riverbanks, lake and pond shores +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
cauline +  and basal +
not undefined +
subumbellate +  and subcapitate +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
Fruiting summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Bot. Taschenb. +
adventitious +
gray +  and blackish green +
basal +  and proximal +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
cylindric +
Illustrated +
2 +  and 10 +
broadly obovoid;subglobose +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
Eriophorum altaicum +, Eriophorum capitatum +  and Eriophorum scheuchzeri var. tenuifolium +
Eriophorum scheuchzeri +
Eriophorum +
species +
filiform +
plant +  and colonial +