. Botanical and vegetation survey of Carter County, Montana, Bureau of Land Management-administered lands . Botany; Rare plants. Reprinted with permission from the New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada, Vol. 1, page 253, Copyright 1952, The New York Botanical Garden. CYPERUS SCHWEINITZII SCHWEINITZ' FLATSEDGE Schweinitz' Flatsedge is a grass-like perennial with stems that are 10-40 cm high, arising from short, irregularly swollen rhizomes. The leaves are 1-4 mm wide and located mostly near the base of the plant. The inflorescence is subte
. Botanical and vegetation survey of Carter County, Montana, Bureau of Land Management-administered lands . Botany; Rare plants. Reprinted with permission from the New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada, Vol. 1, page 253, Copyright 1952, The New York Botanical Garden. CYPERUS SCHWEINITZII SCHWEINITZ' FLATSEDGE Schweinitz' Flatsedge is a grass-like perennial with stems that are 10-40 cm high, arising from short, irregularly swollen rhizomes. The leaves are 1-4 mm wide and located mostly near the base of the plant. The inflorescence is subtended by 3-6 long leaf-like bracts, some of which are wider than the leaves. The infloresence is made up of ascending clusters of flattened spikelets that are 5-25 mm long and borne on stalks that are very short to long. The flowers are crowded opposite each other and consist only of a small, pointed scale, which is ca. 3-4 mm long and subtends 3 stamens and an ovary. The seed is triangular in cross-section. Flowering reported early July. Mature fruit from late June-August. This is our only perennial CYPERUS and is the only one occurring in upland Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Vanderhorst, James P; Cooper, Stephen V; Heidel, Bonnie L; United States. Bureau of Land Management; Montana Natural Heritage Program. Helena, MT : Montana Natural Heritage Program
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