Carex divisa

Hudson

Fl. Angl., 348. 1762.

IntroducedIllustrated
Treatment appears in FNA Volume 23. Treatment on page 306. Mentioned on page 303, 304.
Revision as of 01:51, 30 July 2020 by imported>Volume Importer
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Rhizomes coarse, 1.9–3.5 mm thick, typically with long, unbranched segments from which shoots arise singly every few nodes. Culms sharply trigonous, (15–) 25–65 (–80) cm, scabrous-angled distally. Leaves: basal sheaths brown; sheaths with hyaline inner band, apex not prolonged, glabrous; ligules 0.5–1.5 mm; blades 1.1–3 mm wide. Inflorescences elongate, 1–3.5 cm; spikes 3–10 (–15), androgynous, ovoid. Pistillate scales reddish-brown, with narrow hyaline margins, ovate, acute to acuminate-awned, dull. Anthers 1.9–3.1 mm, apiculus bristly hairy (30X). Perigynia reddish-brown, faintly to strongly veined on both sides, usually stipitate, broadly ovate, thickly planoconvex, 3–4.3 × 1.8–2.4 mm, shiny; beak 0.6–0.9 mm, 1/5–1/4 length of body, oblique to bidentulate. 2n = 58, 60.


Phenology: Fruiting May–Jun.
Habitat: Wet shores and marshy areas in freshwater habitats near the coast
Elevation: 0–10 m

Distribution

V23 533-distribution-map.jpg

Introduced; Md., N.C., Va., Eurasia, New Zealand

Discussion

Carex divisa was first recorded in North America in 1933 (S. F. Blake 1934); it was also introduced into New Zealand.

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Carex divisa"
biconvex +
smaller +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.31 cm3.1 mm <br />0.0031 m <br />) +
not prolonged +
bidentate;tapering;acuminate +
hairy +  and bristly +
A. A. Reznicek +  and Paul M. Catling +
Hudson +
not +  and fibrous +
rounded +
bidentulate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
v--shaped +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
not wide +
scabrous-angled +  and trigonous +
25 cm250 mm <br />0.25 m <br /> (65 cm650 mm <br />0.65 m <br />) +
Md. +, N.C. +, Va. +, Eurasia +  and New Zealand +
0–10 m +
stipitate +, veinless +  and veined +
ovate;narrowly ovate planoconvex or biconvex +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Wet shores and marshy areas in freshwater habitats near the coast +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
stipitate +  and veined +
0.3 cm3 mm <br />0.003 m <br /> (0.43 cm4.3 mm <br />0.0043 m <br />) +
ascending +  and erect +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
Fruiting May–Jun. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
cuspidate;scale-like +
short-awned +  and cuspidate +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
adventitious +
reddish-brown +
basal +  and proximal +
acute;acuminate-awned +
cylindric +
Introduced +  and Illustrated +
sessile +, pistillate +  and staminate +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex divisa +
Carex sect. Divisae +
species +
plant +, colonial +  and not cespitose +