Carex complanata

Torrey & Hooker

Ann. Lyceum Nat. Hist. New York 3: 408. 1836.

Illustrated
Treatment appears in FNA Volume 23. Treatment on page 484. Mentioned on page 482, 483.

Culms 20–75 cm, glabrescent. Leaves: sheaths sparsely pilose, but usually densely pilose at mouth; ligules shorter than wide; blades 1.5–4 mm wide, glabrescent, or often persistently pilose proximally. Inflorescences: lateral spikes approximate or proximal distant, 6–15 × 4–5 mm; terminal spike gynecandrous, at least 1/2 of flowers pistillate, 14–25 mm. Pistillate scales ovate, 1.9–3 (–3.5) × (0.8–) 0.9–1.5 (–1.7) mm, shorter than to equaling perigynia, apex acute to acuminate, sometimes with awn to 0.5 mm. Staminate scales oblong-obovate, 2.7–5.3 mm, apex acuminate or short-awned. Anthers 1.5–2.2 mm. Perigynia ascending, 5–18-veined, obovate-circular, ± trigonous in cross-section, 2–3.5 × 1.1–2.1 mm, not papillose, glabrous or sparsely pilose; beak absent. Achenes 1.6–2.3 × 0.9–1.5 mm.


Phenology: Fruiting late spring–early summer.
Habitat: Dry open woods, neutral to acidic soils
Elevation: 0–500 m

Distribution

V23 892-distribution-map.jpg

Ala., Ark., Del., D.C., Fla., Ga., Iowa, La., Md., Miss., Mo., N.J., N.C., S.C., Tenn., Tex., Va., Mexico

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Carex complanata"
0.16 cm1.6 mm <br />0.0016 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
trigonous +
0.9mm;1.5mm +
stipitate +, veinless +  and veined +
elliptic +  and broadly obovate rounded-trigonous +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
, +  and beakless +
pubescent +  and glabrous +
Peter W. Ball +
Torrey & Hooker +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
shortened +
tapering +  and rounded +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
pilose +  and glabrescent +
v--shaped +
1.5mm;4mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
glabrescent +
round +  and trigonous +
20 cm200 mm <br />0.2 m <br /> (75 cm750 mm <br />0.75 m <br />) +
Ala. +, Ark. +, Del. +, D.C. +, Fla. +, Ga. +, Iowa +, La. +, Md. +, Miss. +, Mo. +, N.J. +, N.C. +, S.C. +, Tenn. +, Tex. +, Va. +  and Mexico +
0–500 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Dry open woods, neutral to acidic soils +
prophyllate +, pedunculate +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
subentire +  and entire +
with (1-)3-6(-30) bristles and/or scales +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
pilose +  and glabrous +
not papillose +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
Fruiting late spring–early summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Ann. Lyceum Nat. Hist. New York +
adventitious +
staminate +  and pistillate +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
basal +  and proximal +
oblong-obovate;ovate +
0.27 cm2.7 mm <br />0.0027 m <br /> (0.53 cm5.3 mm <br />0.0053 m <br />) +
0.9mm;1.5mm +
cylindric +
Illustrated +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex sect. Virescentes +
Carex complanata +
Carex sect. Porocystis +
species +
1.4 cm14 mm <br />0.014 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
plant +  and cespitose +