Carex roanensis F.J.Herm.

Roan mountain sedge (en)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Plants cespitose, in small clumps. Culms dark maroon at base; flowering stems 60–85 cm, longer than leaves at maturity, 0.6–0.7 mm thick, glabrous. Leaves: basal sheaths maroon, bladeless, pubescent; others grading from maroon to green on back with yellowish brown-hyaline front, streaked with dark red and pilose; blades flat, 2.5–4.5 mm wide, pilose on abaxial surface, sparsely so adaxially. Inflorescences: peduncles of lateral spikes slender, 3–40 mm; of terminal spike 5–6 mm, glabrous; proximal bracts equaling or exceeding inflorescences; sheaths to 15 mm or longer; blades 2–3.5 mm wide. Lateral spikes 2–3, 1 per node, well separated, erect to ascending or proximal spikes nodding at maturity, pistillate with 10–40 perigynia attached 1 mm apart distally, 2 mm apart proximally, linear-elongate, 10–70 × 2–3 mm. Terminal spike gynecandrous, 20–55 × 2–3 mm. Pistillate scales hyaline with broad green midrib, oblong-obovate, shorter than mature perigynia, apex mucronate to cuspidate or aristate, awn usually less than 1 mm, glabrous. Perigynia olive-green, conspicuously 5–8-veined, especially on abaxial face, loosely enveloping achene, substipitate, ellipsoid-ovoid, 3–4 × 1.2–1.5 mm, membranous, tapering gradually to acute beakless apex, densely pubescent. Achene distinctly stipitate, 2.5 × 1 mm.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.6 - 0.85
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Carex roanensis unspecified picture

Distribution

Carex roanensis world distribution map, present in Georgia, Nicaragua, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:47005-2
WFO ID wfo-0000350772
COL ID RBL4
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Carex roanensis