Carex bicolor

Allioni

Fl. Pedem. 2: 267. 1785.

Common names: Carex bicolore
Illustrated
Treatment appears in FNA Volume 23. Treatment on page 426. Mentioned on page 425.

Culms erect or procumbent, to 20 cm. Leaves: blades 2–6 cm × 1–2.5 mm. Inflorescences: proximal bracts scalelike or leaflike, sheathless or with sheaths to 5 mm; lateral spikes with 5–25 perigynia, usually fastigiate, occasionally proximal distant, dense, 5–12 × 3.5–5.5 mm; middle internodes 0.2–0.4 mm; terminal spike gynecandrous, usually less than 1/3 of flowers staiminate, sessile, 6–11 mm, 1.1–1.8 mm wide in staminate portion. Pistillate scales ascending, ovate-circular, 1.9–2.5 (–3) × 1.1–1.7 mm, apex obtuse, sometimes slightly mucronate. Staminate scales usually black or, rarely, dark-brown with green midvein and hyaline margins, oblongovate, 2–3.5 mm, apex obtuse. Perigynia ascending, white, elliptic-ovate, 1.8–3 × 1–1.8 mm, densely papillose. Achenes obovate, 1.4–2 × 1–1.6 mm. 2n = ca. 52.


Phenology: Fruiting summer.
Habitat: Moist tundra, usually calcareous, rocks and soils
Elevation: 0–500 m

Distribution

V23 780-distribution-map.jpg

Greenland, B.C., Man., Nfld. and Labr. (Nfld.), N.W.T., Nunavut, Ont., Que., Sask., Alaska, Europe, Asia

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Carex bicolor"
0.14 cm1.4 mm <br />0.0014 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
smaller +
1mm;1.6mm +
shortbeaked +  and beakless +
papillose +
obtuse;mucronate;obtuse +
Peter W. Ball +
Allioni +
tapering +  and rounded +
Bicolores +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
v--shaped +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
sheathless +  and sheathing +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex bicolore +
round +  and trigonous +
0 cm0 mm <br />0 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Greenland +, B.C. +, Man. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, Nunavut +, Ont. +, Que. +, Sask. +, Alaska +, Europe +  and Asia +
0–500 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Moist tundra, usually calcareous, rocks and soils +
prophyllate +, pedunculate +  and pistillate +
distant +  and fastigiate +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
not much longer than wide +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
stipitate +  and veined +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
Fruiting summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
with sheaths +  and sheathless +
papillose +
adventitious +
staminate +  and pistillate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
dark-brown +, , +  and black +
basal +  and proximal +
2-keeled +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
cylindric +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Illustrated +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex bicolor +
Carex sect. Bicolores +
species +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
plant +  and cespitose +