Eriophorum virginicum

Linnaeus

Sp. Pl. 1: 52. 1753.

Common names: Tawny cotton-grass linaigrette de Virginie
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 22. Mentioned on page 23.

Plants colonial from long-creeping rhizomes. Culms 40–120 cm × 0.6–1 mm, smooth or scabrous distally. Leaves: blades flat, trigonous in cross-section distally, to 30 cm × 1.5–4 mm; distal leaf-blade much longer than sheath. Inflorescences: blade-bearing involucral-bracts 2–5, sometimes brown-tinged proximally, leaflike, longest 4–12 cm. Spikelets 2–10, usually in dense head, ovoid, 6–10 mm in flower, 10–20 mm in fruit; peduncles 2–10 (–20) mm, scabrid; scales brown, often with green center, ovateoblong, 4–5 mm, obscurely ribbed or with 3–5 equally prominent ribs, apex obtuse. Flowers: perianth bristles usually 10 or more, brown at least at base, rarely entirely white, 12–18 mm, smooth; anthers 0.7–1.5 mm. Achenes dark-brown to black, narrowly obovoid or ellipsoid, 2.5–4 mm.


Phenology: Fruiting mid summer–early fall.
Habitat: Bogs, meadows
Elevation: 0–1000 m

Distribution

V23 22-distribution-map.jpg

St. Pierre and Miquelon, N.B., Nfld. and Labr., N.S., Ont., P.E.I., Que., Conn., D.C., Ill., Ind., Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number."longest" is not a number.

... more about "Eriophorum virginicum"
dark-brown +  and black +
ellipsoid;obovoid +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Peter W. Ball +  and Daniel E. Wujek +
Linnaeus +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
trigonous +
0.15 cm1.5 mm <br />0.0015 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 +
Tawny cotton-grass +  and linaigrette de Virginie +
40 cm400 mm <br />0.4 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
terete +  and trigonous +
0.6mm;1mm +
St. Pierre and Miquelon +, N.B. +, Nfld. and Labr. +, N.S. +, Ont. +, P.E.I. +, Que. +, Conn. +, D.C. +, Ill. +, Ind. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.C. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
0–1000 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Bogs, meadows +
4 cm40 mm <br />0.04 m <br /> (12 cm120 mm <br />0.12 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
cauline +  and basal +
subumbellate +  and subcapitate +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
Fruiting mid summer–early fall. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
prominent +
adventitious +
basal +  and proximal +
2-keeled +
cylindric +
Illustrated +  and Endemic +
2 +  and 10 +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
Eriophorum virginicum +
Eriophorum +
species +
filiform +
plant +  and colonial +