growth glabrous, 1-year old usually purple-brown, sometimes tan or reddish-brown, 2-years old grayish; thorns on twigs usually numerous, straight to recurved
12 KB (981 words) - 14:43, 30 July 2020
1/2+ connate; styles 0.8–1.2 mm. Capsules cylindric, 7–12 × 3–4 mm, apex subacute. Seeds 0.8–1.1 mm. Phenology: Flowering late summer (Jul–Sep). Habitat:
6 KB (472 words) - 11:16, 30 July 2020
broadly cuneate, margins entire, plane, rarely indistinctly undulate, apex subacute to obtuse or emarginate, mucronulate. Inflorescences axillary glomerules
7 KB (608 words) - 09:41, 30 July 2020
A. C. Dibble, A. A. Reznicek Treatment appears in FNA Volume 23. Plants usually densely cespitose, rarely colonial, short-rhizomatous. Culms brown at base
57 KB (937 words) - 01:54, 30 July 2020
membranous-translucent. Culms often arching or recurved or reclining, their spikelets usually all fruiting simultaneously, long to very short in 1 tuft, subterete, 4–40
12 KB (1,173 words) - 01:28, 30 July 2020
acuminate. Inflorescences terminal and axillary, terminal usually occupying distal 1/3–1/2 of stem, usually lax, interrupted at least in basal 1/2, narrowly paniculate
8 KB (849 words) - 10:05, 30 July 2020
oblanceolate or elliptic, to 34 × 3.5 cm. Spikes usually very tightly spiraled, rarely loosely spiraled, usually 3 flowers per cycle of spiral; rachis glabrous
6 KB (557 words) - 05:23, 30 July 2020
acuminate. Inflorescences terminal and axillary, usually occupying distal 2/3 of stem/shoot, usually dense, or interrupted in proximal part, broadly paniculate
7 KB (713 words) - 10:05, 30 July 2020
Fruiting spring. Habitat: Mesic deciduous forests, usually on gentle slopes above small streams in ravines, usually in shallow loams and sandy loams over clays
8 KB (677 words) - 02:09, 30 July 2020
rooting at the lower nodes. Sheaths usually shorter than the internodes, glabrous, margins short-ciliate; ligules usually less than 0.3 mm, membranous, erose
7 KB (1,050 words) - 04:10, 30 July 2020
cm diam., greenish or reddish to purplish; bracts 2–3 at proximal node, usually leaflike, often with whorl of sessile bracts ca. midstem, elliptic, 0.5–1
9 KB (902 words) - 10:55, 30 July 2020
papillose-pubescent, with distinctly tuberous roots and short rhizomes. Stems usually erect, rarely ascending, branched above middle, 25–90 (–100) cm. Leaves:
8 KB (772 words) - 10:06, 30 July 2020
stipitate-glandular, surfaces glabrous, eglandular; petiole and rachis usually with pricklets, puberulent to pubescent, sometimes glabrous, eglandular
14 KB (1,227 words) - 13:51, 30 July 2020
flat, apex obtuse to subacute; tubercles 3, equal or subequal, normally less than 2 times as wide as inner tepals. Achenes usually reddish-brown, 3–4.5
8 KB (872 words) - 10:06, 30 July 2020
margins entire, normally flat, apex acute or subacute. Inflorescences terminal, occupying distal 1/3 of stem, usually lax and interrupted especially in proximal
8 KB (790 words) - 10:05, 30 July 2020
(–8) mm, base usually distinctly cordate, margins entire or subentire near apex, distinctly dentate in basal 1/2, apex acute or subacute, teeth 0.5–1 mm;
7 KB (791 words) - 10:06, 30 July 2020
(–8) mm, base usually distinctly cordate, margins entire or subentire near apex, denticulate or dentate near base, apex acute or subacute, teeth to 0.5
7 KB (743 words) - 10:06, 30 July 2020
apex rounded to subacute, surfaces glabrous. Inflorescences compact corymbs (sometimes subracemose in robust specimens), pallid, usually infused with purple
9 KB (588 words) - 19:25, 29 July 2020
cordate, margins entire to obscurely repand, usually slightly crisped or undulate, apex obtuse to subacute. Inflorescences terminal, occupying distal 1/2
7 KB (730 words) - 10:06, 30 July 2020
obtuse, rarely subacute. Inflorescences terminal, occupying distal 1/2 of stem, usually lax, interrupted, broadly paniculate; branches usually distinctly arcuate
7 KB (751 words) - 10:07, 30 July 2020