Carex hirta

Linnaeus

Sp. Pl. 2: 975. 1753.

Common names: Carex hérissé
IntroducedIllustrated
Treatment appears in FNA Volume 23. Treatment on page 501. Mentioned on page 473, 498, 500.

Culms trigonous in cross-section, (10–) 20–90 cm. Leaves: basal sheaths brown, reddish purple-tinged, inner bands slightly fibrillose with age; sheaths spreading-pubescent; ligules 2–8 (–10.5) mm; blades spreading, 2.5–8 mm wide, pubescent, not papillose abaxially. Inflorescences 8–50 cm; spikes erect or ascending; proximal (1–) 2–3 spikes pistillate; terminal 1–3 spikes staminate. Pistillate scales ovate, apex acute to acuminate, scabrous-awned, sparsely spreading-pubescent or glabrous. Staminate scales ovate, apex obtuse to acuminate, shortly scabrous-awned except sometimes the proximal, sparsely to densely spreading-white-pubescent. Perigynia 12–20-veined, 4.8–7.8 × 1.7–2.5 mm, ± densely spreading-pubescent; beak 1.5–2.7 mm, spreading-pubescent, teeth spreading, 0.8–1.7 mm. 2n = 112–114.


Phenology: Fruiting Jun–Aug.
Habitat: Dry to wet fields, ditches, roadsides, railroad embankments, disturbed stream banks, lakeshores, and open forests
Elevation: 0–600 m

Distribution

V23 932-distribution-map.jpg

Introduced; N.S., Ont., P.E.I., Que., Conn., Maine, Md., Mass., Mich., N.J., N.Y., Pa., Wis., Eurasia, New Zealand

Discussion

Carex hirta was first collected in North America in 1877 in Amherst, Massachusetts, and in 1878 in Philadelphia, Pennsylvania. Completely glabrous forms, known from Eurasia, have not yet been found in North America.

Selected References

None.

Lower Taxa

None.

"less" is not a number.

... more about "Carex hirta"
112 +  and 114 +
trigonous +
smaller +
pubescent +  and glabrous +
spreading-white-pubescent +, glabrous +  and spreading-pubescent +
A. A. Reznicek +  and Paul M. Catling +
Linnaeus +
shortened +
reddish purple-tinged;brown +
rounded +
spreading-pubescent +
bidentate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
papillose +
m-shaped +  and flat +
2.5mm;8mm +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex hérissé +
redbrown +  and brown +
trigonous +
20 cm200 mm <br />0.2 m <br /> (90 cm900 mm <br />0.9 m <br />) +
acute +  and short-awned +
N.S. +, Ont. +, P.E.I. +, Que. +, Conn. +, Maine +, Md. +, Mass. +, Mich. +, N.J. +, N.Y. +, Pa. +, Wis. +, Eurasia +  and New Zealand +
0–600 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Dry to wet fields, ditches, roadsides, railroad embankments, disturbed stream banks, lakeshores, and open forests +
8 cm80 mm <br />0.08 m <br /> (50 cm500 mm <br />0.5 m <br />) +
staminate +, prophyllate +, pedunculate +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
0.48 cm4.8 mm <br />0.0048 m <br /> (0.78 cm7.8 mm <br />0.0078 m <br />) +
spreading-pubescent +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Fruiting Jun–Aug. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
adventitious +
staminate +  and pistillate +
basal +  and proximal +
ovate;ovate +
shorter or longer +
spreading-pubescent +
cylindric +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
membranous +
Introduced +  and Illustrated +
staminate +  and pistillate +
ascending +  and erect +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
persistent +
2-3(-4)-fid +
Carex hirta +
Carex sect. Carex +
species +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
plant +  and cespitose +