TAPE-LEAF FLAT-SEDGE
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| File Size: 76 KB |
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Cyperus acuminatus Torr. & Hook.
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| Konza Prairie, Riley County, Kansas |
| Annual |
| Height: 2-14 inches |
| Family: Cyperaceae - Sedge Family |
| Flowering Period: July, August, September |
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| Also Called: | | Tape-leaf nut-sedge, sharp-pointed flat-sedge, taper-leaf flat-sedge. | | Culms: | | Erect, slender, triangular, usually straw-colored. | | Leaves: | | Blades few, basal, light green, equal to or slightly longer than culms, less than 1/10 inch wide. | | Inflorescences: | | Spikes, dense, spherical, 1/4 to 3/4 inch in diameter, borne on 2-5 rays .5 to 1.5 inches long or sometimes sessile; bracts 2-4, unequal, leaf-like, to 3 inches long, less than 1/10 inch wide, much exceeding inflorescence. | | Spikelets: | | Spikelets strongly flattened, ovate to oblong, to 1/4 inch long, closely overlapping, 10-40-flowered, radiating in all directions from common point; scales ovate, pale green, turning brownish with age, central nerve prominent; tips pointed, curving outward; stamen 1; style 3-cleft. | | Fruits: | | Achenes, oblong, 3-angled, pointed at both ends, yellowish brown, 1-seeded. | | Habitat: | | Low wet areas and edges of ponds, lakes, and streams. | | Distribution: | | East 4/5 of Kansas. |
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| Tape-leaf flat-sedge |  | | 123 KB | | Konza Prairie, Riley County, Kansas |
| | Tape-leaf flat-sedge spike and spikelets |  | | 73 KB | | Konza Prairie, Riley County, Kansas |
| | Tape-leaf flat-sedge spike and spikelets |  | | 60 KB | | Konza Prairie, Riley County, Kansas |
| | Tape-leaf flat-sedge inflorescence |  | | 98 KB | | Konza Prairie, Riley County, Kansas |
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