Carex interior

L. H. Bailey

Bull. Torrey Bot. Club 20: 426. 1893.

Common names: Carex continental
Illustrated
Basionyms: Carex scirpoides Schkuhr ex Willdenow Sp. Pl. 4(1): 237. 1805,
Treatment appears in FNA Volume 23. Treatment on page 328. Mentioned on page 326, 327.

Culms 10–95 cm. Leaves 3–5 per culm; sheaths tight, inner band hyaline, 1.8–13 cm, apex concave, glabrous; ligule of distalmost leaf obtuse to rounded, 0.6–2.2 mm; blades plicate, 6–31 cm × 0.6–2.4 (–2.7) mm, widest leaf 1–2.4 (–2.7) mm wide. Inflorescences 0.8–3.7 cm; spikes 2–5 (–7); lateral spikes pistillate often with few staminate flowers proximally, 3–9.5 mm, sessile, staminate portion 3-flowered, to 2.2 mm, pistillate portion 3–18-flowered, 2.3–8 mm; basal 2 spikes 2.1–11 mm apart; terminal spike 5.2–20 mm, gynecandrous, staminate portion 3–10-flowered, 2.2–14.5 × 0.7–1.4 mm, pistillate portion 4–16-flowered, 3–7 × 4–5.8 mm. Pistillate scales ovate, 1.2–2.1 (–2.4) × 1–1.6 mm, apex obtuse. Staminate scales ovate, 1.4–2.9 × 1–1.3 mm, base clavate, apex obtuse to acute. Anthers 0.6–1.4 mm. Perigynia spreading to reflexed, castaneous to dark-brown, 4–12-veined abaxially, sometimes faintly, 0 (–6) -veined adaxially over achene, ovate, often convexly tapered from widest point to beak, forming a “shoulder,” 1.95–3 (–3.3) × 1.1–1.8 mm, 1.4–2 (–2.2) times as long as wide; beak 0.4–0.95 mm, 0.18–0.44 length of body, setulose-serrulate, teeth 0.15–0.4 mm. Achenes ovate, 1.2–1.8 × 0.95–1.5 mm.


Phenology: Fruiting late spring–early summer.
Habitat: Wet meadows, wet prairies, fens, coniferous and deciduous swamps, river and lakeshores, seeps, usually in ± calcareous, open sites
Elevation: 0–2700 m

Distribution

V23 582-distribution-map.jpg

St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Alaska, Ariz., Ark., Calif., Colo., Conn., Idaho, Ill., Ind., Iowa, Kans., Maine, Mass., Mich., Minn., Mo., Mont., Nebr., Nev., N.H., N.J., N.Y., N.Dak., Ohio, Oreg., Pa., S.Dak., Utah, Vt., Va., W.Va., Wash., Wis., Wyo., Mexico (Chihuahua)

Discussion

When Carex interior occurs with C. sterilis, C. echinata, and (rarely) C. atlantica, usually sterile intermediates, presumably hybrids, may occasionally be found.

Selected References

None.

Lower Taxa

None.

... more about "Carex interior"
0.12 cm1.2 mm <br />0.0012 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
much smaller +
0.95mm;1.5mm +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
A. A. Reznicek +
L. H. Bailey +
shortened +
white-hyaline +, hyaline +  and narrow +
clavate +
Carex scirpoides +
setulose-serrulate +
0.18 length of body;0.44 length of body +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.095 cm0.95 mm <br />9.5e-4 m <br />) +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
6 cm60 mm <br />0.06 m <br /> (31 cm310 mm <br />0.31 m <br />) +
inconspicuous +
v--shaped +
0.6mm;2.4mm +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex continental +
0.8mm +  and 5mm +
round +  and trigonous +
10 cm100 mm <br />0.1 m <br /> (95 cm950 mm <br />0.95 m <br />) +
St. Pierre and Miquelon +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Alaska +, Ariz. +, Ark. +, Calif. +, Colo. +, Conn. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Maine +, Mass. +, Mich. +, Minn. +, Mo. +, Mont. +, Nebr. +, Nev. +, N.H. +, N.J. +, N.Y. +, N.Dak. +, Ohio +, Oreg. +, Pa. +, S.Dak. +, Utah +, Vt. +, Va. +, W.Va. +, Wash. +, Wis. +, Wyo. +  and Mexico (Chihuahua) +
0–2700 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Wet meadows, wet prairies, fens, coniferous and deciduous swamps, river and lakeshores, seeps, usually in ± calcareous, open sites +
0.8 cm8 mm <br />0.008 m <br /> (3.7 cm37 mm <br />0.037 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (13 cm130 mm <br />0.13 m <br />) +
sessile +  and pistillate +
0.3 cm3 mm <br />0.003 m <br /> (0.95 cm9.5 mm <br />0.0095 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
obtuse;rounded +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
basal +  and cauline +
with (1-)3-6(-30) bristles and/or scales +
0(-6)-veined +  and 4-12-veined +
0.3 cm3 mm <br />0.003 m <br /> (0.33 cm3.3 mm <br />0.0033 m <br />) +
castaneous +  and dark-brown +
0.195 cm1.95 mm <br />0.00195 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
spreading +  and reflexed +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
Fruiting late spring–early summer. +
2-3(-4)-carpellate +
4-16-flowered +, pistillate +, 3-10-flowered +, staminate +, 3-18-flowered +  and 3-flowered +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.58 cm5.8 mm <br />0.0058 m <br />) +
3 (?) +  and 1 (?) +
Bull. Torrey Bot. Club +
adventitious +
staminate +  and pistillate +
0.21 cm2.1 mm <br />0.0021 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.29 cm2.9 mm <br />0.0029 m <br />) +
basal +  and proximal +
ovate;ovate +
1mm;1.3mm +
cylindric +
Illustrated +
0.21 cm2.1 mm <br />0.0021 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex interior +
Carex sect. Stellulatae +
species +
staminate +  and pistillate +
0.52 cm5.2 mm <br />0.0052 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.015 cm0.15 mm <br />1.5e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
plant +  and cespitose +
1mm +  and 2.4mm +