Carex praticola

Rydberg

Mem. New York Bot. Gard. 1: 84. 1900.

Common names: Carex des prés
IllustratedEndemic
Basionym: Carex pratensis Drejer Naturhist. Tidsskr. 3: 442. 1841,
Synonyms: Carex piperi Mackenzie Carex platylepis Mackenzie
Treatment appears in FNA Volume 23. Treatment on page 354. Mentioned on page 334, 342, 346, 355.

Plants densely cespitose. Culms (16–) 30–70 (–95) cm. Leaves: sheath adaxially white-hyaline or summits often tinged brown or copper, U-shaped, not prolonged more than 2.8 mm; distal ligules 1–2.5 (–3.5) mm; blades (2–) 3–5 per fertile culm, 10–30 cm × (1.5–) 2–3 (–4) mm. Inflorescences usually open, often nodding, whitish, green, or gold to dark-brown, occasionally beaded, (1.7–) 2.5–5 cm × 10–15 (–17) mm; proximal internode 4–14 mm; 2d internode (2.5–) 4–10 mm; proximal bracts scalelike to bristlelike, shorter than inflorescences. Spikes 4–10, distant, distinct, oblanceloid to broadly ovoid, 8.5–20 × 3–9 mm, base acute to attenuate, apex tapered to truncate. Pistillate scales white, gold, coppery, or brown, with white or green to brown midstripe, lanceolate to broadly ovate, (3.4–) 4.2–5.8 mm, equaling or longer than and narrower than or equaling perigynia, margin white, 0.1–0.3 mm wide, apex obtuse to acuminate. Anthers early deciduous ro short-persistent. Perigynia appressed to ascending-spreading, often hyaline, white, green, or gold, brown or coppery over achene, conspicuously (0–) 4–11-veined abaxially, conspicuously 0–4 (–7) -veined adaxially, ovate or, sometimes, lanceolate, planoconvex or flat, (3.7–) 4.5–6 × 1.2–2 mm, 0.5–0.8 mm thick, length 2.8–3.1 times width, margin flat, including wing (0.1–) 0.2–0.4 (–0.5) mm wide, ciliate-serrulate, without glossy metallic sheen; beak green or gold to redbrown or chestnut-brown, white-hyaline at tip, cylindric, unwinged, ± entire for 0.4–1 mm, abaxial suture conspicuous with white-hyaline margin or inconspicuous, distance from beak tip to achene (1.6–) 1.9–3 mm. Achenes ovate or obovate, 1.4–2.1 (–2.7) × (0.8–) 1–1.5 mm, 0.4–0.6 mm thick. 2n = 76, 78.


Phenology: Fruiting spring–summer.
Habitat: Moist to wet meadows, open dry woods, rocky areas
Elevation: 10–3500 m

Distribution

V23 615-distribution-map.jpg

Greenland, Alta., B.C., Man., Nfld. and Labr., N.W.T., Ont., Que., Sask., Yukon, Alaska, Calif., Colo., Idaho, Ill., Maine, Mich., Minn., Mont., Nev., N.Dak., Oreg., S.Dak., Utah, Wash., Wyo.

Discussion

Carex praticola is an uncommon and a local native plant in eastern North America. The distributions in southern Ontario and Illinois are introductions.

Selected References

None.

Lower Taxa

None.

"narrower" is not a number."+timesaslongasinflorescences" is not declared as a valid unit of measurement for this property."not undefined" is not a number.

... more about "Carex praticola"
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
obovate;ovate +
smaller +
0.4mm +  and 0.6mm +
short-persistent +  and deciduous +
bidentatate +
papillose +
Joy Mastrogiuseppe +, Paul E. Rothrock +, A. C. Dibble +  and A. A. Reznicek +
Rydberg +
shortened +
persistent +
acute +  and attenuate +
not enlarged +
Carex pratensis +
cylindric +
inconspicuous +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
3 (?) +  and 5 (?) +
v--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex des prés +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
round +  and trigonous +
30 cm300 mm <br />0.3 m <br /> (70 cm700 mm <br />0.7 m <br />) +
2mm;3mm +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Greenland +, Alta. +, B.C. +, Man. +, Nfld. and Labr. +, N.W.T. +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Ill. +, Maine +, Mich. +, Minn. +, Mont. +, Nev. +, N.Dak. +, Oreg. +, S.Dak. +, Utah +, Wash. +  and Wyo. +
10–3500 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Moist to wet meadows, open dry woods, rocky areas +
1.7 cm17 mm <br />0.017 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
gold +  and dark-brown +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not prophyllate +, sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
white-hyaline +  and white +
0.2mm +  and 0.4mm +
green +  and brown +
with (1-)3-6(-30) bristles and/or scales +
0-4(-7)-veined +  and (0-)4-11-veined +
coppery +, brown +, gold +, green +, white +  and hyaline +
appressed +  and ascending-spreading +
0.5mm +  and 0.8mm +
Fruiting spring–summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0.4 cm4 mm <br />0.004 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Mem. New York Bot. Gard. +
adventitious +
0.34 cm3.4 mm <br />0.0034 m <br /> (0.42 cm4.2 mm <br />0.0042 m <br />) +
brown +, coppery +, gold +  and white +
basal +  and proximal +
lanceolate;broadly ovate +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.58 cm5.8 mm <br />0.0058 m <br />) +
herbaceous +  and membranous +
not differentiated +
cylindric +
Illustrated +  and Endemic +
distinct +
0.85 cm8.5 mm <br />0.0085 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +  and persistent +
2-3(-4)-fid +
copper +  and tinged brown +
not prolonged +
u--shaped +
Carex piperi +  and Carex platylepis +
Carex praticola +
Carex sect. Ovales +
species +
plant +  and cespitose +