Trichophorum planifolium

(Sprengel) Palla

Oesterr. Bot. Z. 63: 402. 1913.

IllustratedEndemic
Basionym: Isolepis planifolia Sprengel Neue Entd. 3: 10. 1822 Scirpus planifolius Muhlenberg 1817
Synonyms: Baeothryon planifolium (Sprengel) Sojak Baeothryon verecundum (Fernald) Á. Löve & D. Löve Eleocharis planifolia (Sprengel) Nees Scirpus verecundus Fernald
Treatment appears in FNA Volume 23. Treatment on page 31. Mentioned on page 29, 30.

Plants densely cespitose; rhizomes absent. Culms trigonous, 10–40 cm, scabrous proximal to inflorescence. Leaves: basal sheaths brown; distal leaf-sheaths concave at mouth; blades 10–400 × 0.8–2 mm, equaling or exceeding culms at flowering and fruiting. Inflorescences: spikelets 3–8-flowered, 4.1–5.2 × 1.5–2.1 mm; bracts equaling spikelets, 3.7–6 mm, apex awned, awn to 3 mm. Spikelets: scales orangebrown to dark-brown, midribs excurrent, apex mucronate. Flowers: perianth bristles 3–6, brown, terete, nearly equaling achenes, scabrous; anthers 1–1.5 mm. Achenes compressed trigonous, 1.5–2 × 0.7–1.1 mm.


Phenology: Fruiting summer (Jun–Jul).
Habitat: Mesic to dry hardwood forests, usually with oak component, often on hillsides
Elevation: 50–900 m

Distribution

V23 43-distribution-map.jpg

Ont., Conn., Del., D.C., Ill., Md., Mass., Mo., N.J., N.Y., Ohio, Pa., R.I., Vt., Va., W.Va.

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Trichophorum planifolium"
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
trigonous;compressed +
0.7mm;1.1mm +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
mucronate +
William J. Crins +
(Sprengel) Palla +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
persistent +
Isolepis planifolia +  and Scirpus planifolius +
1 cm10 mm <br />0.01 m <br /> (40 cm400 mm <br />0.4 m <br />) +
elongate +
0 cm0 mm <br />0 m <br /> (?) +  and 0.5 cm5 mm <br />0.005 m <br /> (?) +
exceeding culms +  and equaling +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
0.37 cm3.7 mm <br />0.0037 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
trigonous +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
Ont. +, Conn. +, Del. +, D.C. +, Ill. +, Md. +, Mass. +, Mo. +, N.J. +, N.Y. +, Ohio +, Pa. +, R.I. +, Vt. +, Va. +  and W.Va. +
50–900 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Mesic to dry hardwood forests, usually with oak component, often on hillsides +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
subbasal +  and basal +
with (1-)3-6(-30) bristles and/or scales +
Fruiting summer (Jun–Jul). +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Oesterr. Bot. Z. +
adventitious +
orangebrown +  and dark-brown +
basal +  and proximal +
2-keeled +
cylindric +
Illustrated +  and Endemic +
0.41 cm4.1 mm <br />0.0041 m <br /> (0.52 cm5.2 mm <br />0.0052 m <br />) +
1.5mm;2.1mm +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
Baeothryon planifolium +, Baeothryon verecundum +, Eleocharis planifolia +  and Scirpus verecundus +
Trichophorum planifolium +
Trichophorum +
species +
not +  and rhizomatous +
plant +  and cespitose +