beaked sedge Status: State Sensitive
General Description: The leaves are strongly papillose on upper surface, involute (edges rolled back), and glaucous (waxy); the widest leaf blades are 1/16 to 1/8 inch wide; the culms are round or very obtusely trigonous (3-angled), and smooth below the inflorescence; long, creeping rhizomes are pre...
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.214.4946 http://www1.dnr.wa.gov/nhp/refdesk/fguide/pdf/caro.pdf |
| Summary: | General Description: The leaves are strongly papillose on upper surface, involute (edges rolled back), and glaucous (waxy); the widest leaf blades are 1/16 to 1/8 inch wide; the culms are round or very obtusely trigonous (3-angled), and smooth below the inflorescence; long, creeping rhizomes are present. Identification Tips: Carex rostrata and C. utriculata differ conspicuously in their leaves and flowers spikes. C. rostrata leaves are narrow, inrolled, strongly glaucous, and have the stomata on the upper blade surface. Leaf blades of C. utriculata are broader, bright green, and have stomata on the lower surface. The fruiting spikes of C. rostrata are more slender than those of C. utriculata. C. rostrata is currently restricted to the NE part of WA, while C. utriculata has a much broader distribution. Phenology: Flowers and fruits in July and August. Range: Alaska, most of Canada, and northern portions of the United States. In WA, it is currently restricted to the northeast, in the Okanogan Highlands physiographic province. Habitat: Quaking or floating peat in association with slender sedge (C. lasiocarpa) along lake shoreline. Other associated species include mud sedge (Carex limosa), bogbean (Menyanthes trifoliata), pink elephants (Pedicularis groenlandica), great sundew (Drosera anglica), many-spiked cottongrass (Eriophorum polystachion), yellow pond lily (Nuphar polysepalum) and water horsetail (Equisetum fluviatile). Elevation 4500-5000 feet. C. utriculata grows in shallow water on firm substrate with water sedge (C. aquatilis). Ecology: The species is presumably dependent upon physiographic and hydrologic conditions suitable for maintenance of bog systems. Specific information on the species ’ ecology is not available. Known distribution of Carex rostrata |
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