Carex stylosa

C. A. Meyer

Mém. Acad. Imp. Sci. St.-Pétersbourg Divers Savans 1: 222, plate 12. 1831.

Common names: Carex à long style
Illustrated
Synonyms: Carex beringiana Chamisso ex Steudel Carex nigritella Drejer Carex stylosa var. nigritella (Drejer) Fernald
Treatment appears in FNA Volume 23. Treatment on page 408. Mentioned on page 402, 407.

Plants cespitose. Culms 15–50 cm, distally slightly scabrous. Leaves 2–4 mm wide. Inflorescences: proximal bracts shorter than or exceeding inflorescences; spikes separate, short-oblong or elongate, 7–20 × 4.5–8 mm; proximal spikes often distant, spreading or pendent, very long-pendunculate; distal spikes erect, pedunculate; lateral (1–) 2–3 (–4) spikes pistillate, of similar length; terminal spike staminate or with perigynia, neither wholly gynecandrous or androgynous. Pistillate scales brown with hyaline margins, lanceolate, shorter and narrower than perigynia, midvein lighter colored than body, often raised, prominent. Perigynia spreading, green or golden, becoming brown, veinless, elliptic, 2.5–3.5 × 1.5–1.75 mm, apex beakless or abruptly beaked, papillose; beak to 0.2–0.3 mm, truncate, smooth. Achenes nearly filling body of perigynia. 2n = 52.


Phenology: Fruiting Jun–Sep.
Habitat: Meadows, heaths, bogs, lakeshores
Elevation: 0–1300 m

Distribution

V23 733-distribution-map.jpg

Greenland, B.C., Nfld. and Labr., Que., Yukon, Alaska, Wash., Asia (Russian Far East)

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number."shorter and narrower" is not a number.

... more about "Carex stylosa"
trigonous +
smaller +
beaked +  and beakless +
papillose +
rounded;tapering;obtuse;shortly awned +
David F. Murray +
C. A. Meyer +
cuneate +  and more or less rounded +
bidentate +  and entire +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
v--shaped +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex à long style +
papillose +  and smooth +
red +  and purple +
round +  and trigonous +
15 cm150 mm <br />0.15 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Greenland +, B.C. +, Nfld. and Labr. +, Que. +, Yukon +, Alaska +, Wash. +  and Asia (Russian Far East) +
0–1300 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Meadows, heaths, bogs, lakeshores +
prophyllate +, pedunculate +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
lighter colored +
prominent +  and raised +
with (1-)3-6(-30) bristles and/or scales +
brown +, golden +  and green +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.175 cm1.75 mm <br />0.00175 m <br />) +
Fruiting Jun–Sep. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
scale-like;,;thread-like +
ladder-fibrillose +  and veined +
purple +, tinged red +  and dotted +
pendent +  and spreading +
Mém. Acad. Imp. Sci. St.-Pétersbourg Divers Savans +
black without yellowbrown +  and brown +
adventitious +
basal +  and proximal +
lanceolate +
cylindric +
Illustrated +
0.7 cm7 mm <br />0.007 m <br /> (2 cm20 mm <br />0.02 m <br />) +
elongate;short-oblong +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
2 +  and 3 +
papillate +
deciduous +
2-3(-4)-fid +
Carex beringiana +, Carex nigritella +  and Carex stylosa var. nigritella +
Carex stylosa +
Carex sect. Racemosae +
species +
with perigynia +  and staminate +
androgynous +  and gynecandrous +
stoloniferous +, rhizomatous +  and long +
plant +  and cespitose +