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230. Carex microchaeta T. Holm, Amer. J. Sci. 167: 305. 1904.
Culms 5–35 cm. Leaves basal; proximal leaves with blades 5–6 mm wide. Inflorescences: spikes approximate, oblong to elongate, 8–25 × 3–8 mm; proximal spike separate, sometimes pendent and long-pedunculate; lateral spikes 2–4; distal spikes erect, short-pedunculate. Pistillate scales dark brown to black, ovate or lanceolate, equaling and as wide as perigynia, apex acute or mucronate. Perigynia veinless, ovate, 3-5–4 × 1.5–2 mm, papillose; beak 0.3–0.5 mm, shallowly bidentate or truncate, sparsely papillose or smooth.
Subspecies 2 (2 in the flora): nw North America, Asia (Russian Far East).
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| 1 |
Perigynia, including beak, reddish brown or purple; midvein of pistillate scales dark, same color as body, inconspicuous. |
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230a subsp. microchaeta |
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Perigynia greenish yellow or yellow-brown, beak black; midvein of pistillate scales lighter color than body, conspicuous. |
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230b subsp. nesophila |
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Lower Taxa
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