Carex albida

L. H. Bailey

Mem. Torrey Bot. Club 1: 9. 1889.

Common names: White sedge
IllustratedEndemicConservation concern
Synonyms: Carex sonomensis Stacey
Treatment appears in FNA Volume 23. Treatment on page 479. Mentioned on page 477, 480.

Plants densely to loosely cespitose; rhizomes thick, short. Culms to 60 cm. Leaves: blades 3–6 mm wide. Inflorescences longer than 15 cm, proximal internodes 100–250 mm; peduncles of proximal spikes commonly exserted less than 1 cm; proximal bracts with blade 40–125 mm, sheaths cylindric, 11–75 mm, mouth not purple-banded, 1.3–2.1 mm wide. Spikes 5–7; lateral spikes androgynous or pistillate, the proximal spikes erect to pendent, 9–20 × 5–8 mm; terminal spike staminate or androgynous, ± erect, 9–19 × 2.5–4.5 mm. Pistillate scales usually scarious with green to gold midvein, obovate to ovate, 2–4 × 1.2–2 mm, apex obtuse to acuminate or, sometimes, awned. Staminate scales gold with pale midvein with broad scarious margins, usually obovate, 2.8–4.3 × 1–2.4 mm, apex acute to short-awned. Anthers 1.4–2.2 mm. Perigynia spreading, green to gold, 11–16-veined, ovate to obovate, 3.1–4.5 × 1–1.6 mm, margins often ciliate distally, glabrous; beak distinct, 0.6–1.2 mm, apex white, ciliate, distance from beak tip to achene apex less than 1.4 mm.


Phenology: Fruiting late spring–early summer.
Habitat: Sphagnum bogs
Elevation: less than 90 m

Discussion

Of conservation concern.

Carex albida is similar to C. lemmonii and is now known from only one station in Sonoma County.

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Carex albida"
0 cm0 mm <br />0 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
biconvex;trigonous +
smaller +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
hispidulous +, setose +  and glabrous +
Peter W. Ball +  and Joy Mastrogiuseppe +
L. H. Bailey +
shortened +
tapered +  and rounded +
straight +
distinct +
bidentate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
v--shaped +
4 cm40 mm <br />0.04 m <br /> (?) +  and 12.5 cm125 mm <br />0.125 m <br /> (?) +
3mm;6mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
White sedge +
round +  and trigonous +
0 cm0 mm <br />0 m <br /> (60 cm600 mm <br />0.6 m <br />) +
2 cm20 mm <br />0.02 m <br /> (?) +
less than 90 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Sphagnum bogs +
15 cm150 mm <br />0.15 m <br /> (?) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
pale +, green +  and gold +
not purple-banded +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
green +  and gold +
0.31 cm3.1 mm <br />0.0031 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
Fruiting late spring–early summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
scale-like +  and filiform +
0.9 cm9 mm <br />0.009 m <br /> (2 cm20 mm <br />0.02 m <br />) +
erect +  and pendent +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Mem. Torrey Bot. Club +
adventitious +
staminate +  and pistillate +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.43 cm4.3 mm <br />0.0043 m <br />) +
basal +  and proximal +
obovate;obovate;ovate +
1mm;2.4mm +
cylindric +
1.1 cm11 mm <br />0.011 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
Illustrated +, Endemic +  and Conservation concern +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex sonomensis +
Carex albida +
Carex sect. Aulocystis +
species +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
stoloniferous +  and rhizomatous +
plant +  and cespitose +