Carex divisa

Hudson

Fl. Angl., 348. 1762.

IntroducedIllustrated
Treatment appears in FNA Volume 23. Treatment on page 306. Mentioned on page 303, 304.

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.

"not prolonged" 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 />) +
hairy +  and bristly +
A. A. Reznicek +  and Paul M. Catling +
Hudson +
shortened +
not +  and fibrous +
rounded +
bidentulate +
1/5 length of body;1/4 length of body +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
v--shaped +
1.1mm;3mm +
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 +