Trichophorum clintonii |
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Clinton's bulrush, Clinton's clubsedge, trichophore de Clinton |
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Habit | Plants densely cespitose; rhizomes absent. |
Culms | trigonous, 7.5–36 cm, scabrous proximal to inflorescence. |
Leaves | basal sheaths orange to dark brown; distal leaf sheaths truncate to concave at mouth; blades (6–)15–250 × 0.5–0.8(–1) mm, equaling or shorter than culms at flowering, much shorter than culms at fruiting. |
Inflorescences | spikelets 3–6-flowered, 3.4–5.3 × 1.3–2.5 mm; bracts shorter than to slightly exceeding spikelets, 3–6 mm, apex mucronate or awned, awn to 1.4 mm. |
Spikelets | scales orange-brown to dark brown, midribs not reaching apices in distal scales, apex obtuse. |
Flowers | perianth bristles 3–6, pale brown, terete, equaling or shorter than achenes, scabrous; anthers 0.7–1.5 mm. |
Achenes | compressed trigonous, 1.5–2 × 1–1.2 mm. |
Trichophorum clintonii |
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Phenology | Fruiting late summer (May–Jul). |
Habitat | Open, dry to mesic prairies, meadows, riverbanks, rock outcrops, on lime-rich substrates |
Elevation | 10–900 m (0–3000 ft) |
Distribution |
ME; MI; MN; NY; WI; AB; NB; ON; QC; SK
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Source | FNA vol. 23, p. 31. |
Parent taxa | Cyperaceae > Trichophorum |
Sibling taxa | |
Synonyms | Scirpus clintonii, Scirpus planifolius var. brevifolius |
Name authority | (A. Gray) S. G. Smith: Novon 5: 102. (1995) |
Web links |