Carex bromoides

Schkuhr ex Willdenow

Sp. Pl. 4(1): 258. 1805.

Illustrated
Treatment appears in FNA Volume 23. Treatment on page 325. Mentioned on page 322, 323, 461.

Plants densely to loosely cespitose. Culms 23–88 cm × 0.5–1.6 mm, smooth. Leaves: ligules 1–3.5 mm, 1–3 times as long as wide; blades 1.1–4.4 mm wide, widest blade 1.3–4.4 mm wide. Inflorescences (12–) 21–63 (–71) mm; proximal internode 3.3–16 (–23) mm; proximal bracts 5–24 (–28) mm, awn 1.3–19 mm; spikes 3–8, usually gynecandrous, sometimes also pistillate, staminate or with pistillate and staminate flowers scattered throughout; proximal spikes with 0–2 staminate and 9–19 pistillate flowers, 10–17 (–20) × 1.8–5 mm; terminal spikes usually with 0–3 staminate and 8–18 pistillate flowers, 9–20 (–25) × 1.5–5 mm. Pistillate scales with pale to redbrown margins, 2.8–4.1 × 1.1–1.6 mm, apex acuminate or with awn to 0.6 mm. Staminate scales with pale to redbrown margins, 2.8–3.9 × 1.4–1.6 mm, apex acute to acuminate. Anthers 1.7–2.9 mm. Perigynia erect, green to pale-brown, (3–) 4–8-veined abaxially, prominently to weakly 3–6-veined adaxially, narrowly lanceolate, (3.3–) 4.1–6.7 × 0.8–1.3 mm, (3.5–) 4–6.1 (–6.6) times as long as wide, apex abruptly contracted or gradually tapering; beak 1.2–2.2 (–2.8) mm, 0.28–0.51 times as long as perigynia, margins serrulate, apex entire or bidentulate, teeth to 0.2 mm, 0–0.05 times as long as perigynia. Stigmas 2–3.4 mm. Achenes 1.7–2.2 × 0.7–1.1 mm, 1.9–2.9 times as long as wide.

Distribution

V23 576-distribution-map.jpg

N.B., N.S., Ont., Que., Ala., Ark., Conn., D.C., Del., Fla., Ga., Ill., Ind., Ky., La., Maine, Mass., Md., Mich., Minn., Miss., Mo., N.C., N.H., N.J., N.Y., Ohio, Pa., R.I., S.C., Tenn., Tex., Va., Vt., W.Va., Wis., Mexico

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Culms 0.5–1(–1.1) mm wide; widest leaf blades 1.3–2.9(–3.1) mm wide; perigynium beak 0.3–0.42 times as long as perigynium. Carex bromoides subsp. bromoides
1 Culms 1–1.6 mm wide; widest leaf blades 2.8–4.4 mm wide; perigynium beak 0.36–0.48 times as long as perigynium. Carex bromoides subsp. montana

"-0.05timesaslongasperigynia" is not declared as a valid unit of measurement for this property.

... more about "Carex bromoides"
0.17 cm1.7 mm <br />0.0017 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
planoconvex;biconvex +
0.7mm;1.1mm +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.29 cm2.9 mm <br />0.0029 m <br />) +
bidentulate +  and entire +
Robert F. C. Naczi +
Schkuhr ex Willdenow +
0 cm0 mm <br />0 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
shortened +
cuneate +  and rounded +
Deweyanae +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
0.28-0.51 times as long as perigynia +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
v--shaped +  and flat +
1.1mm;4.4mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
green;hyaline +
23 cm230 mm <br />0.23 m <br /> (88 cm880 mm <br />0.88 m <br />) +
round +  and trigonous +
0.5mm;1.6mm +
N.B. +, N.S. +, Ont. +, Que. +, Ala. +, Ark. +, Conn. +, D.C. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, La. +, Maine +, Mass. +, Md. +, Mich. +, Minn. +, Miss. +, Mo. +, N.C. +, N.H. +, N.J. +, N.Y. +, Ohio +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex. +, Va. +, Vt. +, W.Va. +, Wis. +  and Mexico +
pistillate +  and staminate +
hypogynous +  and subtending +
8 +  and 18 +
biconvex +  and trigonous +
6.3 cm63 mm <br />0.063 m <br /> (7.1 cm71 mm <br />0.071 m <br />) +
2.1 cm21 mm <br />0.021 m <br /> (6.3 cm63 mm <br />0.063 m <br />) +
sessile +, staminate +  and pistillate +
androgynous +  and gynecandrous +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.1 cm1 mm <br />0.001 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
pale +  and redbrown +
with (1-)3-6(-30) bristles and/or scales +
3-6-veined +  and (3-)4-8-veined +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.41 cm4.1 mm <br />0.0041 m <br />) +
green +  and pale-brown +
(3.5-)4-6.1(-6.6) +
0.41 cm4.1 mm <br />0.0041 m <br /> (0.67 cm6.7 mm <br />0.0067 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
2.4 cm24 mm <br />0.024 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
0.33 cm3.3 mm <br />0.0033 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
1.7 cm17 mm <br />0.017 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
adventitious +
staminate +  and pistillate +
whitish +  and castaneous +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.39 cm3.9 mm <br />0.0039 m <br />) +
basal +  and proximal +
2-keeled +
1.4mm;1.6mm +
cylindric +
Illustrated +
with pistillate and staminate flowers +, staminate +  and pistillate +
gynecandrous +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0.2 cm2 mm <br />0.002 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
deciduous +
2-3(-4)-fid +
enlarged +
Carex bromoides +
Carex sect. Deweyanae +
species +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
plant +  and cespitose +
1.3mm +  and 4.4mm +