Carex tenuiflora

Wahlenberg

Kongl. Vetensk. Acad. Nya Handl. 24: 147. 1803.

Common names: Carex tênuiflore
Illustrated
Treatment appears in FNA Volume 23. Treatment on page 313. Mentioned on page 312, 314.

Plants loosely cespitose; rhizomes long, slender. Culms ± erect, weak, 10–50 cm. Leaves: sheaths pale-brown abaxially, inner band hyaline, concave at summit; ligules as long as wide; blades pale green, flat or channeled, 5–15 cm × 0.5–2 mm. Inflorescences erect, ovoid or suborbicular, 0.6–1.2 cm × 4–9 mm; proximal bracts scalelike, sometimes bristlelike, shorter than inflorescences. Spikes 2–4, gynecandrous, closely approximate, containing 3–15 perigynia, short-oblong, 4–9 × 3–6 mm. Pistillate scales white-hyaline with green, 3-veined center, ovate, subequal to perigynia, apex obtuse. Perigynia appressed-ascending, gray-green, obscurely few-veined, obovate-elliptic, 3–3.5 × 1.5–1.75 mm, subcoriaceous; beak absent or nearly so. Achenes pale-brown, oblongelliptic, 1.5–2 × 1.25 (–1.5) mm, glossy. 2n = 58.


Phenology: Fruiting May–Aug.
Habitat: Mires, especially sphagnum bogs, wet woodlands, lowlands
Elevation: 0–1400 m

Distribution

V23 547-distribution-map.jpg

Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., Ont., P.E.I., Que., Sask., Yukon, Alaska, Colo., Maine, Mass., Mich., Minn., Mont., Ohio, N.Y., Vt., Wis., n Eurasia

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Carex tenuiflora"
0.125 cm1.25 mm <br />0.00125 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
oblongelliptic +
smaller +
beaked +  and beakless +
papillose +  and smooth +
Heikki Toivonen +
Wahlenberg +
shortened +
truncate +  and rounded +
inconspicuous +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
channeled +  and flat +
0.5mm;2mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
subequal +
Carex tênuiflore +
round +  and trigonous +
10 cm100 mm <br />0.1 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Alaska +, Colo. +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, Ohio +, N.Y. +, Vt. +, Wis. +  and n Eurasia +
0–1400 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Mires, especially sphagnum bogs, wet woodlands, lowlands +
suborbicular +  and ovoid +
sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
angled;rounded +
with (1-)3-6(-30) bristles and/or scales +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
appressed-ascending +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
subcoriaceous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.175 cm1.75 mm <br />0.00175 m <br />) +
Fruiting May–Aug. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Kongl. Vetensk. Acad. Nya Handl. +
adventitious +
white-hyaline with green +
basal +  and proximal +
2-keeled +
cylindric +
Illustrated +
approximate +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
gynecandrous +
short-oblong +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex tenuiflora +
Carex sect. Glareosae +
species +
plant +  and cespitose +