Overview

Distribution

National Distribution

Canada

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Global Range: In North America, native to British Columbia south to California (FNA 2002; Kartesz 2003 draft; GRIN 2001). Carex ovalis is also native throughout Europe and in western Asia (GRIN 2001; FNA 2002). Carex ovalis is naturalized in Atlantic Canada, scattered eastern states south to North Carolina and west to Wisconsin, and also in Australia and New Zealand (GRIN 2001; FNA 2002).

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St. Pierre and Miquelon; B.C., N.B., Nfld. and Labr. (Nfld.), N.S., P.E.I.; Calif., Maine, Nev., N.H., N.Y., N.C., Oreg., Pa., Tenn., Wash., Wis.; Eurasia; New Zealand.
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Physical Description

Morphology

Description

Plants densely cespitose. Culms (24–)35–85 cm. Leaves: sheath adaxially white-hyaline, summits U-shaped to rounded; distal ligules 2–3 mm; blades (1–)2–4(–5) per fertile culm, flat ± to tip, 7–22 cm × (1.5–)2–3.5(–4) mm. Inflorescences stiffly erect, usually open, brown, 1.5–4 cm × 10–15 mm; proximal internode (2.5–)4–10 mm; 2d internode (2.5–)3–6 mm; proximal bracts scalelike or bristlelike, shorter than inflorescences. Spikes 5–9, usually loosely aggregated, ovoid to broadly ovoid, 9–14 × 6–8 mm, base attenuate, apex rounded to tapered. Pistillate scales reddish gold to brown or greenish, often white-hyaline at tip or base, with pale or green midstripe, narrowly to broadly ovate, 3.4–5 mm, length and width less or greater than perigynia, margin not white-hyaline, apex acute to acuminate. Perigynia ascending to ascending-spreading, gold to light brown, conspicuously 3–9-veined abaxially, conspicuously 2–5-veined adaxially, lanceolate to ovate, usually flat except over achene, 3.4–4.7(–5.2) × 1.3–2.1 mm, 0.4–0.5 mm thick, margin flat, including wing 0.2–0.6 mm wide; beak red-brown or gold at tip, usually cylindric, unwinged, ± entire for 0.3–0.5 mm, sometimes flat, ciliate-serrulate to tip, abaxial suture often with conspicuous white margin, distance from beak tip to achene (1.2–)1.5–2 mm. Achenes elliptic to broadly ovate, 1.1–1.8 × 0.9–1.2 mm, 0.4–0.5 mm thick. 2n = 62, 64, 66, 68.
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Diagnostic Description

Synonym

Carex tracyi Mackenzie
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Ecology

Habitat

Meadows, seasonally wet soils; 0–1100m.
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Life History and Behavior

Cyclicity

Flowering/Fruiting

Fruiting summer.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Carex ovalis

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Carex ovalis

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 8
Specimens with Barcodes: 18
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G4 - Apparently Secure

Reasons: In North America, native to British Columbia south to California (FNA 2002; Kartesz 2003 draft; GRIN 2001). Carex ovalis is also native throughout Europe and in western Asia (GRIN 2001; FNA 2002). In British Columbia, it occurs in moist to wet meadows and is infrequent on Vancouver Island and rare elsewhere (Douglas 2001). In the Pacific Coast states, it occurs in the Cascades and North Coast Ranges on seasonally wet soil (Kartesz 2003 draft; Hickman 1993). Known from 29 counties in Washington, Oregon, and California (Kartesz 2003 draft).

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Notes

Comments

Carex leporina Linnaeus has been incorrectly applied to C. ovalis in North America. 

 Carex ovalis is naturalized in the flora in Newfoundland and Labrador, Nova Scotia, Prince Edward Island, Quebec, Connecticut, Maine (one locality), New Hampshire, New York, and Wisconsin; it is naturalized also in New Zealand. 

 West coast plants are apparently native and sometimes have been recognized as a distinct species, Carex tracyi.

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Names and Taxonomy

Taxonomy

Comments: Plants of the west coast of North America are apparently native and sometimes have been recognized as distinct from the Eurasian material (e.g., North American plants are treated as Carex tracyi by Mackenzie 1940, see Flora of North America 2002).

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