Carex angustata Boott

Carex angustata is a member of the C. stricta complex based on the scabrous, red-brown, bladeless ladder-fibrillose sheaths, the veined perigynia, the hypostomic leaves, and the low chromosome numbers. It is distinguished from sympatric members of the group, C. nudata and C. senta, by the rhizomatous habit, the few-veined perigynia, and the scabrous stems and from the often-sympatric C. aquatilis by the scabrous, veined sheaths and the veined perigynia.

Plants not cespitose. Culms acutely angled, 30–110 cm, scabrous. Leaves: basal sheaths red-brown; sheaths of proximal leaves bladeless, scabrous, fronts with red-brown spots, prominently ladder-fibrillose, apex red-brown, U-shaped; blades hypostomic, 4–7 mm wide, papillose abaxially. Inflorescences: proximal bract subequal to inflorescence, 3–6 mm wide. Spikes erect; staminate 1–2; pistillate 3–4; proximal pistillate spike 2.5–7 cm × 3–5 mm, base attenuate. Pistillate scales red-brown or black, longer than perigynia, apex acute, awnless. Perigynia ascending, pale brown with red-brown spots on apical 1/2, 1–3-veined abaxially, somewhat flattened, loosely enclosing achenes, ellipsoid or obovoid, 2.2–3 × 1.2–2 mm, dull, apex obtuse or acute, papillose; beak red-brown, 0.2–0.5 mm. Achenes not constricted, dull. 2n = 66, 68.

Calif., Idaho, Oreg., Wash.

Fruiting Jul–Aug.

Wet meadows along streams; 300–2300m.

Carex egregia Mackenzie; C. eurycarpa T. Holm; C. oxycarpa T. Holm

Carex eurycarpa Holm, Am. Jour. Sci. IV 20: 303; 307./. 9, 10. 1905.
Carex oxycarpa Holm, Am. Jour. Sci. IV. 20: 303; 307. /. 11-12. 1905. (Type from Klickitat County, Washington.)
Carex eurycarpa var. oxycarpa Kiikenth. in Engler, Pflanzenreich 4 20 : 339. 1909. (Based on C. oxycarpa Holm.)
Carex egregia Mackenzie, Bull. Torrey Club 42: 414. 1915. (Type from Falcon Valley, Washington.)
"Carex acutina L. H. Bailey" Smiley, Univ. Calif. Publ. Bot. 9: 121. 1921.
Loosely cespitose and stoloniferous from short-creeping rootstocks, the stolons horizontal, scaly, stout, brownish, the culms 4-9 dm. high, 4.5 mm. thick at base, 1.5 mm. thick below spikes, slender but erect, sharply triangular with concave sides, slightly roughened above, papillate, exceeding leaves, strongly purplish-tinged at base, aphyllopodic; sterile shoots aphyllopodic; leaves with well-developed blades 3 or 4 to a fertile culm, on lower fourth, somewhat bunched, the blades flat to base with revolute margins, light-green, thin but firm, papillate, roughened towards apex, usually 1-3 dm. long, 2-3 mm. wide, the sheaths hispidulous, little carinate and sparingly septate-nodulose dorsally, brownish-tinged ventrally, the lower breaking and conspicuously filamentose, the ligule as long as wide; terminal spike linear, staminate, stalked, 3-4 cm. long, 5 mm. wide, the scales obovate, obtuse, purplish-black with white midvein not extending to apex and narrow hyaline margin; lateral spikes 4 or 5, the upper 1 or 2 small, staminate, the lower 2-4 pistillate (often staminate at apex), more or less strongly separate, sessile or short-peduncled, erect, 2.5-4.5 cm. long, 5 mm. wide, with 50-150 appressed-ascending perigynia in several to many rows; lowest bract leaf-like, exceeding inflorescence, sheathless, dark-tinged at base, the upper bracts reduced, not conspicuously dark-auricled; scales lanceolate, acute or sometimes cuspidate, purplish-black with white midvein, narrower and longer or shorter than perigynia; perigynia unequally biconvex, obovate to suborbicular-obovate, 3 mm. long, 1.5-2 mm. wide, 2-ribbed (the marginal) and finely 3-7striate on both faces, brownish, puncticulate, resinous-dotted, granular-roughened, membranaceous, the margins sharp-nerved, often with few stiff, deciduous cilia, rounded and substipitate at base, rounded and abruptly minutely apiculate at apex, the beak 0.2-0.5 mm. long, entire or slightly emarginate; achenes lenticular, obovate, 1.5 mm. long, 1.25 mm. wide, filling lower two thirds of perigynium, brownish, substipitate, apiculate, jointed with the slender straight style; stigmas 2, slender, short.
Type locality : Falcon Valley, western Klickitat County, Washington (Suksdorf 1284, 2962.) Distribution: Wet meadows, from northern California to Washington, and eastward to

Carex angustata (lat. Carex angustata) - cilkimilər fəsiləsinin cil cinsinə aid bitki növü.

Carex angustata is a species of sedge known by the common name widefruit sedge. It is native to the western United States from Washington and Idaho to California, where it grows in wet meadows and on streambanks.

Carex angustata Boott es una especie de planta herbácea de la familia de las ciperáceas.

Carex angustata est une espèce de plantes du genre Carex et de la famille des Cyperaceae.

Carex angustata adalah spesies tumbuhan seperti rumput yang tergolong ke dalam famili Cyperaceae. Spesies ini juga merupakan bagian dari ordo Poales. Spesies Carex angustata sendiri merupakan bagian dari genus Carex. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh Boott.

Carex angustata là một loài thực vật có hoa trong họ Cói. Loài này được Boott mô tả khoa học đầu tiên năm 1839.