Carex sect. Anomalae

J. Carey

Carices North. U.S., 557. 1847.

Treatment appears in FNA Volume 23.

Plants cespitose, stout-rhizomatous. Culms brown [purple] or redbrown at base, sharply angled or winged. Leaves: basal sheaths not fibrous; sheath fronts membranous, pubescent; blades M-shaped in cross-section when young, adaxial side of blade with 2, lateral, veins more prominent than midvein, septate-nodulose, larger blades 8–23 mm wide, not hairy, sometimes scabrous on adaxial surface [or puberulous]. Inflorescences racemose, with 4–8 (–9) spikes; proximal nonbasal bracts leaflike, sheathless or sheath less than 4 mm, pubescent; lateral spikes pistillate, pedunculate, prophyllate; terminal spike staminate (rarely gynecandrous). Proximal pistillate scales with apex acute or awned. Perigynia ascending or spreading, veined or veinless, with 2, strong, marginal veins, slightly stipitate, [ovate to lance or oblongovate] obovate, rounded-trigonous in cross-section, less than 10 mm, base tapering or rounded, apex abruptly contracted to beak, glabrous or scabrous; beak conic, recurved, 0.7–1.9 mm, orifice hyaline, erose or bidentate, teeth less than 0.8 mm. Stigmas 3. Achenes trigonous, almost as large as bodies of perigynia; style deciduous.

Distribution

Primarily temperate, some tropical and subtropical, North America, e Asia, Australia

Discussion

Species ca. 20 (2 in the flora).

Selected References

None.

Key

1 Perigynia 2-ribbed and strongly 6–8-veined, scabrous-puberulent; leaf blades and bracts dark green, prominently scabrous on margins and adaxial surface; culm bases brownish; e North America. Carex scabrata
1 Perigynia 2-ribbed, otherwise veinless or inconspicuously 1–7-veined, glabrous; leaf blades and bracts light green or grayish blue-green-green, (at least the faces) glabrous; culm bases usually red tinged; w North America. Carex amplifolia
... more about "Carex sect. Anomalae"
trigonous +
scabrous +  and glabrous +
Theodore S. Cochrane +
J. Carey +
shortened +
rounded +  and tapering +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
m--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
redbrown +  and brown +
Primarily temperate +, some tropical and subtropical +, North America +, e Asia +  and Australia +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
0.8 cm8 mm <br />0.008 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
prophyllate +, pedunculate +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
bidentate +
with (1-)3-6(-30) bristles and/or scales +
stipitate +, veinless +  and veined +
spreading +  and ascending +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Carices North. U.S., +
adventitious +
basal +  and proximal +
2-keeled +
cylindric +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex sect. Anomalae +
section +
0 cm0 mm <br />0 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
more prominent +
plant +  and cespitose +