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Carex stenoptila F. J. Herm.
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Carex stenoptila F.J. Herm.
riverbank sedge

General Information
Symbol: CAST4
Group: Monocot
Family: Cyperaceae
Duration: Perennial
Growth Habit : Graminoid
Native Status : L48   N
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Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   





Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Liliopsida – Monocotyledons
Subclass Commelinidae
Order Cyperales
Family Cyperaceae – Sedge family
Genus Carex L. – sedge
Species Carex stenoptila F.J. Herm. – riverbank sedge

Subordinate Taxa

This plant has no children

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Wetland Status

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Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from Flora of North America
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FNA Vol. 23 Page 343, 350, 351 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 23 | Cyperaceae | Carex

109. Carex stenoptila F. J. Hermann, Leafl. W. Bot. 4: 194. 1945.

Plants densely cespitose. Culms with angles smooth proximally, 17—70 cm. Leaves: sheaths adaxially white-hyaline, often tinged brown distally, summit usually U-shaped, sometimes prolonged to 1.5 mm beyond collar; distal ligules 0.5—1.5(—3) mm; blades (2—)3—4 per fertile culm, 8—20 cm × 2.2—3.8 mm. Inflorescences dense, dark or chestnut brown or brown and green (gold), 1.2—2(—2.5) cm × 8—15 mm; proximal internode 1—3(—4) mm; 2d internode 0.5—3 mm; proximal bracts usually bristlelike, shorter than inflorescences. Spikes 5—9(—12), densely aggregated, individually indistinct, ovoid or broadly ovoid, 7.5—11 × 3.5—6.5 mm, base rounded to attenuate, apex truncate to tapered. Pistillate scales gold to brown, with pale to gold midstripe, lanceolate to ovate, 3.1—3.8 mm, shorter than and narrower than or as wide as perigynia, margin usually not white, apex obtuse to long-acute. Perigynia appressed-ascending to ascending, green to straw colored, conspicuously 6—8-veined abaxially, conspicuously 3—4(—6)-veined adaxially, at least 3 veins longer than achene, narrowly lanceolate to lanceolate, biconvex, 4—5.1 × 1—1.3(—1.5) mm, (0.4—)0.5—0.55 mm thick, margin flat, including wing 0.1—0.25 mm wide, ciliate-serrulate at least on distal body, pithlike tissue usually present in proximal perigynium walls; beak usually dark brown at tip, cylindric, unwinged, ± entire for 0.5—0.9 mm, abaxial suture inconspicuous or with white margin, distance from beak tip to achene 2.2—3.1 mm. Achenes narrowly elliptic to oblong, (1.1—)1.4—1.8 × 0.6—0.9 mm, 0.3—0.5 mm thick.

Fruiting late summer. Open rocky places, coniferous woods; 2400—2900 m; Colo., Mont., Utah, Wyo.

Updated: 2019-09-17 08:21:45 gmt
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