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.
... 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 +
Peter W. Ball +
Allioni +
shortened +
tapering +  and rounded +
Bicolores +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
v--shaped +
1mm;2.5mm +
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 +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
basal +  and proximal +
2-keeled +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
1.1mm;1.7mm +
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 +