Carex hendersonii

L. H. Bailey

Proc. Amer. Acad. Arts 22: 115. 1887.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 434. Mentioned on page 433, 472.

Culms densely tufted, ascending, lax or decumbent, 45–87 cm × 2–2.2 mm brownish. Leaves: basal sheaths; sheaths green, lighter toward base, 7–55 mm; blades ascending, green, corrugate, 19–52 cm × 3–16 mm, blades of overwintering leaves smooth abaxially. Inflorescences: peduncles of lateral spikes 0–15 cm; of terminal spike 0.2–4 cm; bracts 2.5–13 × 3–10 mm, blade of distal lateral spike linear. Spikes (3–) 4 (–5) per culm; lateral spikes erect, 12–27 × 2.7–3 mm; terminal spike linear-clavate, 15–21 × 2–2.7 mm, usually from sheath of distal lateral spike. Pistillate scales 2.7–3.1 × 1.9–2.3 mm, apex aristate to acute. Staminate scales obovate, 5.7–6.2 × 2.7–3 mm, margins hyaline and brownish, apex acute. Anthers 3–3.2 mm. Perigynia 7–12 per spike, scattered on proximal spikes, ratio of longer lateral spike length to perigynia number 1.9–3.4, aggregated on distal spikes, (22–) 25–32-veined, linear, 4.6–6 × 1.8–2.3 mm; beak slightly concave at maturity, 0.5–1.8 mm. Achenes ellipsoid, 4.5–5 × 1.6–2 mm.


Phenology: Fruiting spring–summer.
Habitat: Moist, mixed deciduous-evergreen forests
Elevation: 5–1000 m

Distribution

V23 793-distribution-map.jpg

B.C., Calif., Idaho, Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Carex hendersonii"
0.45 cm4.5 mm <br />0.0045 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
ellipsoid +
1.6mm;2mm +
0.3 cm3 mm <br />0.003 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
Charles T. Bryson +  and Robert F. C. Naczi +
L. H. Bailey +
shortened +
tapering +
Laxiflorae +
concave +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
19 cm190 mm <br />0.19 m <br /> (52 cm520 mm <br />0.52 m <br />) +
m--shaped +
3mm;16mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
0.25 cm2.5 mm <br />0.0025 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
ascending +  and appressed +
scale-like +  and leaflike +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
45 cm450 mm <br />0.45 m <br /> (87 cm870 mm <br />0.87 m <br />) +
round +  and trigonous +
2mm;2.2mm +
B.C. +, Calif. +, Idaho +, Oreg. +  and Wash. +
5–1000 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Moist, mixed deciduous-evergreen forests +
prophyllate +, pedunculate +  and pistillate +
1.2 cm12 mm <br />0.012 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
0.27 cm2.7 mm <br />0.0027 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
overwintering +
basal +  and cauline +
hyaline and brownish +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
(22-)25-32-veined +
aggregated +  and scattered +
not black-mottled +, yellowbrown +  and dark-brown +
0.46 cm4.6 mm <br />0.0046 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
Fruiting spring–summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
long-sheathing +  and leaflike +
awned +  and acute +
Proc. Amer. Acad. Arts +
adventitious +
staminate +  and pistillate +
0.57 cm5.7 mm <br />0.0057 m <br /> (0.62 cm6.2 mm <br />0.0062 m <br />) +
basal +  and proximal +
obovate +
2.7mm;3mm +
cylindric +
0.7 cm7 mm <br />0.007 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
Illustrated +  and Endemic +
0.2 cm2 mm <br />0.002 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex hendersonii +
Carex sect. Laxiflorae +
species +
linear-clavate +
0.2 cm2 mm <br />0.002 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
plant +  and cespitose +