Eriophorum gracile

W. D. J. Koch ex Roth

Catal. Bot. 2: 259. 1800.

Common names: Linaigrette grêle
Illustrated
Treatment appears in FNA Volume 23. Treatment on page 25. Mentioned on page 22, 24.

Plants colonial from long-creeping rhizomes. Culms 20–60 cm × 0.5–0.8 mm, distally smooth. Leaves: blades trigonous-channeled in cross-section, to 30 cm × 1–2 mm; distal leaf-blade 1–4 cm × 1–1.5 mm, shorter than its 3.5–5.5 cm sheath. Inflorescences: blade-bearing involucral-bracts solitary, similar to distal leaf, blade usually gray or black proximally, 0.6–2 cm. Spikelets (1–) 2–5, in subumbels, narrowly ovoid, 7–10 mm in flower, 15–25 mm in fruit; peduncles 5–30 mm, scabrous; scales black or dark gray with black tip, broadly ovate, 3–4 mm, scarious, margins absent or to 0.1 mm wide, 5–9-ribbed, midrib prominent, usually dilated distally, reaching tip, apex obtuse-subacute. Flowers: perianth bristles 10 or more, white, 10–15 mm, smooth; anthers 1–2.5 mm. Achenes narrowly obovoid, 1.5–3 mm.


Phenology: Fruiting late spring–mid summer.
Habitat: Meadows, bogs, shores, usually peaty, acidic substrates
Elevation: 0–4000 m

Distribution

V23 28-distribution-map.jpg

St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., P.E.I., Que., Sask., Alaska, Calif., Colo., Conn., Del., Idaho, Ill., Ind., Maine, Mass., Mich., Minn., Mont., Nev., N.H., N.J., N.Y., Ohio, Oreg., Pa., R.I., Utah, Vt., Wash., Wis., Wyo., Eurasia

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Eriophorum gracile"
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Peter W. Ball +  and Daniel E. Wujek +
W. D. J. Koch ex Roth +
shortened +
black +  and gray +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
trigonous-channeled +
0.6 cm6 mm <br />0.006 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
1mm;2mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
parallel +  and divergent +
terete +, rolled +  and plicate +
Linaigrette grêle +
20 cm200 mm <br />0.2 m <br /> (60 cm600 mm <br />0.6 m <br />) +
terete +  and trigonous +
0.5mm;0.8mm +
3.5 cm35 mm <br />0.035 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
St. Pierre and Miquelon +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Sask. +, Alaska +, Calif. +, Colo. +, Conn. +, Del. +, Idaho +, Ill. +, Ind. +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, Nev. +, N.H. +, N.J. +, N.Y. +, Ohio +, Oreg. +, Pa. +, R.I. +, Utah +, Vt. +, Wash. +, Wis. +, Wyo. +  and Eurasia +
0–4000 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Meadows, bogs, shores, usually peaty, acidic substrates +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
cauline +  and basal +
subumbellate +  and subcapitate +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
Fruiting late spring–mid summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Catal. Bot. +
adventitious +
dark gray +  and black +
basal +  and proximal +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
cylindric +
Illustrated +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
Eriophorum gracile +
Eriophorum +
species +
filiform +
plant +  and colonial +