Carex inops

L. H. Bailey

Proc. Amer. Acad. Arts 22: 126. 1886.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 543. Mentioned on page 534, 541.

Plants loosely cespitose; rhizomes horizontally spreading, brown to reddish-brown, 20–70 mm, slender. Culms 13–50 cm, scabrous distally; bases (remnants of old leaves) weakly to strongly fibrous. Leaf-blades green, 0.7–4.5 mm wide, herbaceous, smooth to scabrous abaxially, smooth to scabrous adaxially. Inflorescences with both staminate and pistillate spikes; peduncles of staminate spikes (0.8–) 2.5–20 mm; proximal cauline bracts leaflike, green or reddish-brown, shorter than inflorescences. Spikes: proximal pistillate spikes 1–3 (–4) (basal spikes 0, rarely 1); cauline spikes overlapping or somewhat separated, with (2–) 5–15 perigynia; staminate spikes 8–30 × 1.3–4.1 mm. Scales: pistillate scales pale-brown to dark reddish-brown or purplish brown, narrow white margins, elliptic to ovate, 2.6–5.4 × 1.2–2.6 mm, equaling perigynia, apex acute to acuminate or short-awned (rarely obtuse); staminate scales with white margins 0.4–0.8 mm wide, lanceolate to obovate, 3.6–6.7 × 1.2–1.7 mm apex obtuse to long-acuminate. Anthers (1.5–) 2–3.8 mm. Perigynia yellowish green to pale-brown or olive, veinless, obovoid, 2.8–4.6 × 1.5–2.2 mm, as long as wide; beak straight, pale green, occasionally with reddish tinge, 0.4–1.3 mm, weakly ciliate-serrulate, apical teeth 0.1–0.7 mm. Stigmas 3. Achenes dark-brown, obovoid to globose, obtusely trigonous in cross-section, (1.4–) 1.6–2.5 × 1.5–2.2 mm.

Distribution

V23 1026-distribution-map.jpg

Alta., B.C., Man., Ont., Sask., Calif., Colo., Ill., Ind., Iowa, Kans., Mich., Minn., Mo., Mont., N.Dak., N.Mex., Nebr., Oreg., S.Dak., Wash., Wis., Wyo.

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Proximal cauline pistillate spikes ovoid to short-cylindric, short-pedunculate; peduncles of staminate spikes (3–)4–20 mm; western British Columbia to northern California. Carex inops subsp. inops
1 Proximal cauline pistillate spikes globose to ovoid, sessile; peduncles of staminate spikes 1.2–4.5 mm; east of the Rocky Mountains. Carex inops subsp. heliophila

No values specified.

... more about "Carex inops"
0.14 cm1.4 mm <br />0.0014 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
trigonous;obovoid;globose +
1.5mm;2.2mm +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
beaked +, awned +  and cuspidate +
glabrous +  and pubescent +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
William J. Crins +  and Jeff H. Rettig +
L. H. Bailey +
shortened +
rounded +  and tapering +
straight +
bidentate +  and bent +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
v--shaped +
2mm;4.5mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
separated +  and overlapping +
brown +  and red +
round +  and trigonous +
13 cm130 mm <br />0.13 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Alta. +, B.C. +, Man. +, Ont. +, Sask. +, Calif. +, Colo. +, Ill. +, Ind. +, Iowa +, Kans. +, Mich. +, Minn. +, Mo. +, Mont. +, N.Dak. +, N.Mex. +, Nebr. +, Oreg. +, S.Dak. +, Wash. +, Wis. +  and Wyo. +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
prophyllate +, pedunculate +, staminate +, , +  and pistillate +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
2.6mm;5.4mm +
elliptic;ovate +
0.4mm +  and 0.8mm +
with (1-)3-6(-30) bristles and/or scales +
yellowish green +  and pale-brown or olive +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
reddish-brown +  and green +
scale-like +  and filiform +
Proc. Amer. Acad. Arts +
brown +  and reddish-brown +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
adventitious +
staminate +  and pistillate +
pale-brown +  and dark reddish-brown or purplish brown +
0.36 cm3.6 mm <br />0.0036 m <br /> (0.67 cm6.7 mm <br />0.0067 m <br />) +
basal +  and proximal +
lanceolate;obovate +
1.2mm;1.7mm +
cylindric +
Illustrated +  and Endemic +
staminate +  and pistillate +
0.8 cm8 mm <br />0.008 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.41 cm4.1 mm <br />0.0041 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex sect. Montanae +
Carex inops +
Carex sect. Acrocystis +
species +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
stoloniferous +  and rhizomatous +
plant +  and cespitose +