The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

bashful bulrush, bashful clubsedge

Clinton's bulrush, Clinton's clubsedge, trichophore de Clinton

Habit Plants densely cespitose; rhizomes absent. Plants densely cespitose; rhizomes absent.
Culms

trigonous, 10–40 cm, scabrous proximal to inflorescence.

trigonous, 7.5–36 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.

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 3–8-flowered, 4.1–5.2 × 1.5–2.1 mm;

bracts equaling spikelets, 3.7–6 mm, apex awned, awn to 3 mm.

spikelets 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 excurrent, apex mucronate.

scales orange-brown to dark brown, midribs not reaching apices in distal scales, apex obtuse.

Flowers

perianth bristles 3–6, brown, terete, nearly equaling achenes, scabrous;

anthers 1–1.5 mm.

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 × 0.7–1.1 mm.

compressed trigonous, 1.5–2 × 1–1.2 mm.

Trichophorum planifolium

Trichophorum clintonii

Phenology Fruiting summer (Jun–Jul). Fruiting late summer (May–Jul).
Habitat Mesic to dry hardwood forests, usually with oak component, often on hillsides Open, dry to mesic prairies, meadows, riverbanks, rock outcrops, on lime-rich substrates
Elevation 50–900 m (200–3000 ft) 10–900 m (0–3000 ft)
Distribution
from FNA
CT; DC; DE; IL; MA; MD; MO; NJ; NY; OH; PA; RI; VA; VT; WV; ON
[WildflowerSearch map]
[BONAP county map]
from FNA
ME; MI; MN; NY; WI; AB; NB; ON; QC; SK
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 23, p. 31. FNA vol. 23, p. 31.
Parent taxa Cyperaceae > Trichophorum Cyperaceae > Trichophorum
Sibling taxa
T. alpinum, T. cespitosum, T. clementis, T. clintonii, T. pumilum
T. alpinum, T. cespitosum, T. clementis, T. planifolium, T. pumilum
Synonyms Isolepis planifolia, Baeothryon planifolium, Baeothryon verecundum, Eleocharis planifolia, Scirpus planifolius, Scirpus verecundus Scirpus clintonii, Scirpus planifolius var. brevifolius
Name authority (Sprengel) Palla: Oesterr. Bot. Z. 63: 402. (1913) (A. Gray) S. G. Smith: Novon 5: 102. (1995)
Web links