Carex sheldonii

Mackenzie

Bull. Torrey Bot. Club 42: 618. 1915.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 500. Mentioned on page 492, 498.

Culms trigonous in cross-section, 40–80 cm. Leaves: basal sheaths reddish purple, inner bands slightly fibrillose with age; sheaths pubescent, at least at apex of inner band; ligules 2–9 mm; blades 2.5–6 mm wide, finely spreading-pubescent or glabrous, not papillose abaxially. Inflorescences 15–50 cm; spikes erect or ascending; proximal (1–) 2–3 spikes pistillate; terminal 1–4 spikes staminate. Pistillate scales narrowly ovate, apex acute to acuminate, scabrous-awned, scabrous near midrib, otherwise glabrous. Staminate scales lanceolate to narrowly ovate, apex obtuse to acuminate, awnless, glabrous or sparsely ± appressed-pubescent near apex. Perigynia 12–18-veined, 4.8–6.5 × 1.4–2.4 mm, sparsely to densely pubescent; beak 1.4–2.6 mm, pubescent, teeth spreading, (0.4–) 0.6–1.4 mm.


Phenology: Fruiting Jun–Sep.
Habitat: Wet meadows, lakeshores, open, moist forests along streams
Elevation: 1200–1900 m

Distribution

V23 931-distribution-map.jpg

Calif., Idaho, Nev., Oreg.

Discussion

Selected References

None.

Lower Taxa

None.

"less" is not a number.

... more about "Carex sheldonii"
trigonous +
smaller +
pubescent +  and glabrous +
appressed-pubescent +  and glabrous +
A. A. Reznicek +  and Paul M. Catling +
Mackenzie +
shortened +
rounded +
bidentate +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
glabrous +  and spreading-pubescent +
papillose +
m-shaped +  and flat +
2.5mm;6mm +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
redbrown +  and brown +
trigonous +
40 cm400 mm <br />0.4 m <br /> (80 cm800 mm <br />0.8 m <br />) +
acute +  and short-awned +
Calif. +, Idaho +, Nev. +  and Oreg. +
1200–1900 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Wet meadows, lakeshores, open, moist forests along streams +
15 cm150 mm <br />0.15 m <br /> (50 cm500 mm <br />0.5 m <br />) +
staminate +, prophyllate +, pedunculate +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
0.2 cm2 mm <br />0.002 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
0.48 cm4.8 mm <br />0.0048 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
Fruiting Jun–Sep. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Bull. Torrey Bot. Club +
adventitious +
staminate +  and pistillate +
basal +  and proximal +
lanceolate;narrowly ovate +
shorter or longer +
cylindric +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
membranous +
Illustrated +  and Endemic +
staminate +  and pistillate +
ascending +  and erect +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
persistent +
2-3(-4)-fid +
Carex sheldonii +
Carex sect. Carex +
species +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
plant +  and cespitose +