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Montana Field Guide

Montana Field Guides

Golden-fruit Sedge - Carex aurea


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 6

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General Description
Rhizomatous. Stems erect, 3–30 cm. Leaves basal and cauline; blades 1–4 mm wide. Inflorescence of 2 to 4 well-separated spikes; the lowest bract greater than the inflorescence. Spikes ascending or spreading; the uppermost male; the lower female, pedunculate, 5–20 mm long, narrowly cylindric. Perigynia spreading, white to green, becoming golden, obovoid, fleshy, papillose, 2–3 mm long, loosely aggregated; stigmas 2. Female scales ovate, sometimes awn-tipped, light brown with a pale midvein and hyaline margins, shorter but nearly as wide as the perigynia. Achene 2-sided, smaller than the perigynium (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Diagnostic Characteristics
Spikes (the lower and the upper) distinctly unalike, lateral spikes sessile or peduncled; if sessile then more or less elongate. Perigynia turgid, obovoid, elliptic in cross section. Mature perigynia membraneous, whitish-puberulent, pistillate scales blunt or rounded. Achenes lenticular to plano-convex, stigmas 2, spikes 2 or more.

Species Range
Present
 


Range Comments
AK to NL south to CA, NM, TX, OH and NY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 107

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

Recency

 

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



Habitat
Moist meadows, turf, usually around streams, ponds, seeps, wetlands; plains, valleys to lower alpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Additional ReferencesLegend:   View Online Publication
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    • Bissell, J.K. 1986. Survey of Valley Wall and Lake Bluff slumps in Erie County, Pennsylvania. Cleveland Museum of Natural History. U86bis01.
    • Bright, J. 1925-1930. The Genus Carex in Pennsylvania, Trillia 9:1-33. A25BRI01PAUS
    • Fernald, M. L. 1950. Gray's manual of botany. Eighth edition. A handbook of the flowering plants and ferns of the central and northeastern United States and Adjacent Canada. American Book Co., New York.
    • Gleason, H.A. 1952. New Britton & Brown. Illustrated Flora. Lancaster Press Inc. Lancaster, Pa. B52GLE01PAUS
    • Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Mackenzie, K.K. 1935. Cyperacea. North American Flora. A35MAC01PAUS.
    • Mackenzie, K.K. 1940. North American Cariceae; in Rickett, H. W. (ed.) ???. The New York Botanical Garden. New York, NY. Lancaster Press, Lancaster, PA. pp. B40MAC01PAUS.
    • McCance, R.M., Jr., and J.F. Burns, eds. 1984. Ohio endangered and threatened vascular plants: Abstracts of state-listed taxa. Division Natural Areas and Preserves, Ohio Dept. Natural Resources, Columbus. 635 pp.
    • Miller, J. 1923. Flora of Erie County Pennsylvania. Erie Women's Club Erie, Pa. B23MIL01PAUS.
    • Nuttal, Thomas. 1818. The Genera of North American Plants: and a catalogue of the species, to the year 1817. Printed by D. Heartt, Philadelphia. 2 volumes. B18NUT01PAUS.
    • Voss, E.G. 1972. Michigan Flora Part I. Kingsport Press, Bloomfield Hills, Mich. B72VOS01PAUS
    • Wherry, E.T., J.M. Fogg and H.A. Wahl. 1979. Atlas of the Flora of Pennsylvania. The Morris Arboretum of the Univ. of Pennsylvania. Philadelphia. B79WHE51PAUS.
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Citation for data on this website:
Golden-fruit Sedge — Carex aurea.  Montana Field Guide.  .  Retrieved on , from