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Published In: Flora Boreali-Americana (Michaux) 1: 28–29. 1803. (Fl. Bor.-Amer.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 9/1/2009)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Native


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2. Kyllinga pumila Michx.

Pl. 78 d, e; Map 295

Cyperus tenuifolius (Steud.) Dandy

C. densicaespitosus Mattf. & Kük.

Plants annual, lacking rhizomes, densely tufted. Aerial stems 3–30 cm long. Leaf blades 1–20 cm long, 1–3 mm wide. Inflorescences of 1–3 globose to ovoid, headlike spikes, 3–7 mm long, the bracts 1–15 cm long. Spikelets 1.8–3.3 mm long, the 2 larger scales ovate, folded lengthwise, the tip tapered to a point, thin and sometimes somewhat translucent, white to tan with lighter margins, indistinctly several-nerved, the broad midrib (keel) usually irregularly toothed, green. Fruits 1.1–1.4 mm long, oblong-elliptic in outline. May–October.

Scattered in southern and central Missouri, mostly south of the Missouri River (eastern U.S. west to Kansas and Texas, south to South America; Caribbean Islands, Africa). Gravel bars and mudflats along streams, rivers, ponds, sinkhole ponds, and lakes; moist depressions of upland prairies, and moist openings of mesic upland forests; also in roadside ditches and disturbed wet areas.



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