Carex crebriflora

Wiegand

Rhodora 24: 197. 1922.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 435. Mentioned on page 433, 434, 439.

Culms densely or loosely tufted, lateral or central, erect or ascending, 17–70 cm × 1–1.5 mm. Leaves: basal sheaths light-brown to brown; sheaths green or yellowish green, 2–60 mm; blades ascending, green or yellowish green, midrib developed abaxially, 2 lateral-veins developed adaxially, flat or slightly corrugated, 4–52 cm × 0.2–10 mm, blades of overwintering leaves smooth. Inflorescences: peduncles of proximal spikes 0–8.5 cm, arising in distal 1/2 of culm; peduncles of terminal spike 0–0.2 cm; bracts 1.3–14 cm × 1–4 mm, blade of distal lateral spike linear, narrower than spikes, widest bract blade of distalmost lateral spike 0.5–3.4 mm wide. Spikes (3–) 4 per culm; lateral spikes 6–24 × 3.5–5 mm, ensheathed by distal bract blades, distal lateral spikes overlapping; terminal spike linear, 11–22 × 0.8–1.8 mm, exceeded by or subequal to distal lateral spike. Stamimate scales linear-ovate, 2.8–3.8 × 1.5–2.2 mm, margins hyaline, apex acute. Pistillate scales 2–2.6 × 1–1.5 mm, apex cuspidate to obtuse. Anthers 1.8–2 mm. Perigynia 4–20 per spike, overlapping, ratio of longer lateral spike length to perigynia number 0.8–1.7, occasionally perigynia of proximal spike scattered, ascending, finely, conspicuously (22–) 25–32-veined, elliptic-ovate, 3–5 × 1.2–2 mm, 1.9–2.3 times as long as achene bodies; beak straight or slightly curved, 0.5–1.7 mm. Achenes obovoid, 2.8–4.4 × 1–1.8 mm. 2n = 42.


Phenology: Fruiting spring.
Habitat: Wet, alluvial soils, mostly sandy, under deciduous or mixed deciduous-evergreen forests
Elevation: 0–100 m

Distribution

V23 796-distribution-map.jpg

Ala., Ark., Fla., Ga., La., Miss., N.C., S.C., Tenn., Tex., Va.

Discussion

Selected References

None.

Lower Taxa

None.

No values specified.

... more about "Carex crebriflora"
0.28 cm2.8 mm <br />0.0028 m <br /> (0.44 cm4.4 mm <br />0.0044 m <br />) +
1mm;1.8mm +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Charles T. Bryson +  and Robert F. C. Naczi +
Wiegand +
shortened +
light-brown;brown +
tapering +
Laxiflorae +
curved +  and straight +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
yellowish green +  and green +
m--shaped +
narrower +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (14 cm140 mm <br />0.14 m <br />) +
ascending +  and appressed +
scale-like +  and leaflike +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
purple +  and brown +
17 cm170 mm <br />0.17 m <br /> (70 cm700 mm <br />0.7 m <br />) +
ascending +  and erect +
central +  and lateral +
round +  and trigonous +
1mm;1.5mm +
Ala. +, Ark. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +, Tenn. +, Tex. +  and Va. +
0–100 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Wet, alluvial soils, mostly sandy, under deciduous or mixed deciduous-evergreen forests +
4 cm40 mm <br />0.04 m <br /> (52 cm520 mm <br />0.52 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (1 cm10 mm <br />0.01 m <br />) +
prophyllate +, pedunculate +  and pistillate +
0.6 cm6 mm <br />0.006 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
overwintering +
basal +  and cauline +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
(22-)25-32-veined +
scattered +  and overlapping +
not black-mottled +, yellowbrown +  and dark-brown +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Fruiting spring. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
long-sheathing +  and leaflike +
awned +  and acute +
adventitious +
0.2 cm2 mm <br />0.002 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
basal +  and proximal +
linear-ovate +
1mm;1.5mm +
cylindric +
0.2 cm2 mm <br />0.002 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Illustrated +  and Endemic +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex crebriflora +
Carex sect. Laxiflorae +
species +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
plant +  and cespitose +