Carex scirpoidea subsp. pseudoscirpoidea

(Rydberg) D. A. Dunlop

Novon 7: 355. 1998.

IllustratedEndemic
Basionym: Carex pseudoscirpoidea Rydberg Mem. New York Bot. Gard. 1: 78. 1900
Synonyms: Carex scirpoidea var. pseudoscirpoidea (Rydberg) Cronquist
Treatment appears in FNA Volume 23.

Plants not cespitose; rhizomes long. Culms erect, 5–31 cm. Leaves: sheaths and bases from previous year’s leaves persistent; blades widely V-shaped in cross-section, to 21 cm × 3 mm. Scales ovate, 2.8 × 1.5 mm. Perigynia ovate, (1.5–) 2–2.8 (–3) × 1.5 mm, body tightly enveloping achene for entire length. Achenes 1.5–1.8 × 0.9–1.2 mm.


Phenology: Fruiting Jun–Sep (depending on elevation).
Habitat: Dry ridge sites, fellfields with gravelly and noncalcareous soils
Elevation: 3300–3900 m

Distribution

V23 1046-distribution-map.jpg

B.C., Calif., Colo., Idaho, Mont., Oreg., Utah, Wash., Wyo.

Discussion

Compared to Carex scirpoidea subsp. pseudo-scirpoidea, C. scirpoidea subsp. scirpoidea occurs at relatively lower elevations and in wetter sites with calcareous soils.

Selected References

None.

Lower Taxa

None.
0.15 cm1.5 mm <br />0.0015 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
trigonous +
smaller +
0.9mm;1.2mm +
Debra A. Dunlop +
(Rydberg) D. A. Dunlop +
shortened +
not +  and fibrous +
rounded +  and tapering +
Carex pseudoscirpoidea +
bidentate +  and emarginate +
0.1 cm1 mm <br />0.001 m <br /> (?) +
0 cm0 mm <br />0 m <br /> (21 cm210 mm <br />0.21 m <br />) +
v--shaped +
prophyllate +  and sheathless +
2-ranked +  and arranged +
ascending +  and appressed +
filiform +
parallel +  and divergent +
terete +, rolled +  and plicate +
to scale apex +  and midway +
puberulent +  and glabrous +
round +  and trigonous +
5 cm50 mm <br />0.05 m <br /> (31 cm310 mm <br />0.31 m <br />) +
B.C. +, Calif. +, Colo. +, Idaho +, Mont. +, Oreg. +, Utah +, Wash. +  and Wyo. +
3300–3900 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Dry ridge sites, fellfields with gravelly and noncalcareous soils +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
persistent +
basal +  and cauline +
acute +  and rounded +
narrow +  and broad +
with (1-)3-6(-30) bristles and/or scales +
stipitate +, veined +  and veinless +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (?) +
Fruiting Jun–Sep (depending on elevation). +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
adventitious +
redbrown +  and purple +
2.8 cm28 mm <br />0.028 m <br /> (?) +
basal +  and proximal +
persistent +
cylindric +
Illustrated +  and Endemic +
pistillate +  and staminate +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex scirpoidea var. pseudoscirpoidea +
Carex scirpoidea subsp. pseudoscirpoidea +
Carex scirpoidea +
subspecies +
0 cm0 mm <br />0 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
plant +  and not cespitose +