Trichophorum clintonii

(A. Gray) S. G. Smith

Novon 5: 102. 1995.

Common names: Trichophore de Clinton
IllustratedEndemic
Basionym: Scirpus clintonii A. Gray Amer. J. Sci. Arts, ser. 2, 38: 290. 1864
Synonyms: Scirpus planifolius var. brevifolius Torrey
Treatment appears in FNA Volume 23. Treatment on page 31. Mentioned on page 29, 30.

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 orangebrown 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.


Phenology: Fruiting late summer (May–Jul).
Habitat: Open, dry to mesic prairies, meadows, riverbanks, rock outcrops, on lime-rich substrates
Elevation: 10–900 m

Distribution

V23 42-distribution-map.jpg

Alta., N.B., Ont., Que., Sask., Maine, Mich., Minn., N.Y., Wis.

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Trichophorum clintonii"
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
trigonous;compressed +
1mm;1.2mm +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
obtuse;awned;mucronate +
William J. Crins +
(A. Gray) S. G. Smith +
0 cm0 mm <br />0 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
orange;dark-brown +
persistent +
Scirpus clintonii +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (25 cm250 mm <br />0.25 m <br />) +
elongate +
0 cm0 mm <br />0 m <br /> (?) +  and 0.5 cm5 mm <br />0.005 m <br /> (?) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
Trichophore de Clinton +
trigonous +
7.5 cm75 mm <br />0.075 m <br /> (36 cm360 mm <br />0.36 m <br />) +
truncate +  and concave +
Alta. +, N.B. +, Ont. +, Que. +, Sask. +, Maine +, Mich. +, Minn. +, N.Y. +  and Wis. +
10–900 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Open, dry to mesic prairies, meadows, riverbanks, rock outcrops, on lime-rich substrates +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
subbasal +  and basal +
with (1-)3-6(-30) bristles and/or scales +
Fruiting late summer (May–Jul). +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
adventitious +
orangebrown +  and dark-brown +
basal +  and proximal +
2-keeled +
cylindric +
Illustrated +  and Endemic +
0.34 cm3.4 mm <br />0.0034 m <br /> (0.53 cm5.3 mm <br />0.0053 m <br />) +
1.3mm;2.5mm +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
Scirpus planifolius var. brevifolius +
Trichophorum clintonii +
Trichophorum +
species +
not +  and rhizomatous +
plant +  and cespitose +