Carex bebbii

(L. H. Bailey) Olney ex Fernald

Proc. Amer. Acad. Arts 37: 478. 1902.

Common names: Carex de Bebb
IllustratedEndemic
Basionyms: Carex tribuloides var. bebbii L. H. Bailey Mem. Torrey Bot. Club 1: 55. 1889
Treatment appears in FNA Volume 23. Mentioned on page 370.

Plants densely cespitose. Culms 20–90 cm; vegetative culms inconspicuous with few leaves clustered at apex. Leaves: sheaths white-hyaline or green-veined, sometimes papillose, summits U-shaped, not distally expanded; distal ligules 2.2–6 mm; blades 3–4 per fertile culm, 11–25 cm × 1.7–4.2 mm. Inflorescences mostly dense, brown, 1.1–3 cm × 5–14 mm; proximal internode 1–4 mm; 2d internode 1.4–3.4 mm; proximal bracts scalelike, with bristle tips shorter than inflorescences. Spikes 3–10, usually overlapping, ovoid to globose, 4–10 × 3–7 mm, base rounded or truncate, apex rounded. Pistillate scales reddish-brown, usually with green or whitish to brown midstripe, lanceolate, 2.5–3.5 mm, shorter and narrower than perigynia, apex acuminate or acute. Perigynia ascending to ascending-spreading, light to dark reddish-brown, conspicuously 3+-veined abaxially, faintly or basally 1–3-veined adaxially, winged to base, ovate or elliptic, planoconvex, 2.5–3.8 × (1–) 1.2–2 mm, 0.35–0.45 mm thick, 1.9–2.5 times as long as wide, margin flat, including wing 0.2–0.5 mm wide, 1b ciliate-serrulate at least distally; beak reddish-brown at tip, flat, ± ciliate-serrulate, abaxial suture with reddish brown-hyaline margin, distance from beak tip to achene 1.2–2.2 mm. Achenes ovate or elliptic, 1–1.3 × 0.6–0.9 mm, 0.3–0.4 mm thick. 2n = 68, 70.


Phenology: Fruiting early summer.
Habitat: Wet places with calcareous or neutral soils, gravelly lakeshores, stream banks, meadows, forest seeps
Elevation: 0–2100 m

Distribution

V23 652-distribution-map.jpg

Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., P.E.I., Que., Sask., Alaska, Colo., Conn., Idaho, Ill., Ind., Iowa, Maine, Mass., Mich., Minn., Mont., Nebr., N.H., N.J., N.Y., N.Dak., Ohio, Oreg., Pa., S.Dak., Utah, Vt., Wash., Wis., Wyo.

Discussion

In addition to typical perennial behavior, Carex bebbii may reach reproductive stage from seed in a single season, thus behaving as a facultative annual. Carex athrostachya and C. crawfordii may share this reproductive feature.

Selected References

None.

Lower Taxa

None.

"+timesaslongasinflorescences" is not declared as a valid unit of measurement for this property."not undefined" is not a number.

... more about "Carex bebbii"
elliptic;ovate +
smaller +
0.3mm +  and 0.4mm +
bidentatate +
papillose +
Joy Mastrogiuseppe +, Paul E. Rothrock +, A. C. Dibble +  and A. A. Reznicek +
(L. H. Bailey) Olney ex Fernald +
shortened +
persistent +
truncate +  and rounded +
not enlarged +
Carex tribuloides var. bebbii +
ciliate-serrulate +
11 cm110 mm <br />0.11 m <br /> (25 cm250 mm <br />0.25 m <br />) +
3 (?) +  and 4 (?) +
v--shaped +
1.7mm;4.2mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex de Bebb +
inconspicuous +
fertile +  and vegetative +
round +  and trigonous +
20 cm200 mm <br />0.2 m <br /> (90 cm900 mm <br />0.9 m <br />) +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Alaska +, Colo. +, Conn. +, Idaho +, Ill. +, Ind. +, Iowa +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.Dak. +, Ohio +, Oreg. +, Pa. +, S.Dak. +, Utah +, Vt. +, Wash. +, Wis. +  and Wyo. +
0–2100 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Wet places with calcareous or neutral soils, gravelly lakeshores, stream banks, meadows, forest seeps +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
not prophyllate +, sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
reddish brown-hyaline +
0.2mm +  and 0.5mm +
whitish +  and brown +
with (1-)3-6(-30) bristles and/or scales +
winged +, 1-3-veined +  and 3+-veined +
light +  and dark reddish-brown +
ascending +  and ascending-spreading +
0.35mm +  and 0.45mm +
Fruiting early summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
sheathless +  and bristlelike +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Proc. Amer. Acad. Arts +
adventitious +
reddish-brown +
basal +  and proximal +
lanceolate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
shorter and narrower +
herbaceous +  and membranous +
not differentiated +
papillose +
cylindric +
Illustrated +  and Endemic +
overlapping +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
ovoid;globose +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +  and persistent +
2-3(-4)-fid +
u--shaped +
expanded +
Carex bebbii +
Carex sect. Ovales +
species +
plant +  and cespitose +