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Montana Field Guide

Montana Field Guides

Long-stolon Sedge - Carex inops
Other Names:  Carex pensylvanica [in part], Carex heliophila

Native Species

Global Rank: G5
State Rank: S5

Agency Status
MNPS Threat Rank:
C-value: 4

External Links

General Description
Rhizomatous. Stems erect, 8–30 cm, tufted. Leaves basal and cauline; blades 1–4 mm wide. Inflorescence of 2 to 3 well-separated sessile spikes; the lowest bract shorter than the inflorescence. Spikes unisexual; the uppermost male, linear, 5–20 mm long; the lower female, ascending, 5–12 mm long, ovoid. Perigynia ascending, greenish, obovoid, short-stalked, pilose, 3–4 mm; the bidentate beak 0.5–1 mm long; stigmas 3. Female scales ovate, awned, tan to brown with a green midstripe and hyaline margins, not completely concealing the perigynia. Achene 3-sided, filling the perigynium (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Montana plants are variety heliophila (Mack.) Crins.

Species Range
Montana Range


Range Comments
AB to MB south to CA, NM, IA and IN (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 498

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)

Sandy or stony soil of grasslands, sagebrush steppe, woodlands, forest openings; plains, valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Ahlenslager. 1988. Carex heliophila. In: Fire Effects Information System, [Online}. U. S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer).
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
    • Seipel, T.F. 2006. Plant species diversity in the sagebrush steppe of Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 87 p.
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Citation for data on this website:
Long-stolon Sedge — Carex inops.  Montana Field Guide.  .  Retrieved on , from