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black creeper sedge, clustered field sedge
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Lyngbye's sedge
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| Plants more or less dioecious, rhizomatous, the rhizomes blackish, stout, 1.8–3 mm in diameter; culms (10)25–80 cm tall, arising singly or in small clusters; plant bases dark brown to blackish. |
Plants rhizomatous, but the deep rhizomes often not collected; forming dense stands; culms 25–130 cm tall; plant bases reddish brown. |
blades 1–3(3.5) mm wide, mainly clustered at the base of the shoots. |
sheath fronts hyaline, not spotted, not ladder-fibrillose; blades 3–8 mm wide, green; smooth-edged; dying in winter. |
0.9–4 cm long; male inflorescences 4–9 mm wide; female inflorescences (4.5)6–12 mm wide; spikes in one plant seemingly all female or all male but usually with a few, nearly undetectable flowers of the opposite sex mixed in the spikes. |
lowest bract usually longer than the inflorescence; lateral 2–4 spikes female or androgynous, dangling on curved peduncles (but the spike itself does not bend), usually truncate at the base, 1.8–5 cm × 5–7 mm; terminal 2–3 spikes male. |
ovate to obovate; (2.2)2.6–3.7 × 1.2–1.9 mm, brown to nearly black, sometimes paler; the base often filled with pithy tissue; beak 0.7–1.2 mm long; stigmas 2. |
ovate to obovate, 2.5–3.5 × 1.6– 2.5 mm; yellowish brown with pale brown spots, 5–7-veined on each face; beak 0.1–0.3 mm long; stigmas 2. |
lenticular. |
lenticular, often with a dent in the side. |
pale; straw-colored to pale reddish brown with hyaline margins; more or less hiding the perigynia, similar in color or paler than the perigynia, awned or not. |
longer than the perigynia; reddish brown to dark purplish brown, acuminate. |
with a tiny bristly awn. |
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=68, 70, 72, 76. |
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Usually found in alkaline or serpentine soils, in seasonally moist prairies and plains, also roadsides salted in winter. 50–2300 m. BR, BW, Col, ECas, Lava, Owy, Sisk. CA, ID, NV, WA; north to Yukon, east to ME and VA, south to Mexico. Native. Carex praegracilis is a common, rhizomatous, more or less dioecious sedge, usually found in alkaline areas of eastern Oregon. It also grows in low-elevation serpentine meadows of southwestern Oregon. Its non-descript female inflorescences hide the perigynia. Rhizomes and shoot bases are blackish; shoots arise singly. Carex douglasii, which grows with C. praegracilis, has slender brown rhizomes and broader, ovoid female inflorescences. It tolerates more alkaline conditions. |
Coastal salt marshes and in more or less fresh water along the lower Columbia River. 0–50 m. CR, Est. CA, WA; north to AK, east to Greenland; Europe. Native. Carex lyngbyei forms extensive stands in coastal salt marshes. Its female spikes are relatively short, with truncate bases, dangling at the ends of curved stalks. Similar C. obnupta and C. aquatilis var. dives grow in fresh to brackish water, sometimes adjacent to C. lyngbyei stands. Both have longer, usually sessile female spikes with tapered bases. |
Flora of Oregon, volume 1, page 221
Barbara Wilson, Richard Brainerd, Nick Otting |
Flora of Oregon, volume 1, page 213
Barbara Wilson, Richard Brainerd, Nick Otting |
C. abrupta, C. agastachys, C. amplifolia, C. angustata, C. aperta, C. aquatilis, C. arcta, C. arenaria, C. atherodes, C. athrostachya, C. atrosquama, C. aurea, C. barbarae, C. bebbii, C. bolanderi, C. brainerdii, C. brevior, C. breweri, C. buchananii, C. buxbaumii, C. californica, C. canescens, C. capillaris, C. capitata, C. chordorrhiza, C. comans, C. comosa, C. concinna, C. concinnoides, C. cordillerana, C. crawfordii, C. cusickii, C. davyi, C. deflexa, C. densa, C. diandra, C. disperma, C. distans, C. douglasii, C. duriuscula, C. echinata, C. exsiccata, C. feta, C. filifolia, C. fissuricola, C. fracta, C. geyeri, C. gynocrates, C. gynodynama, C. halliana, C. harfordii, C. hassei, C. haydeniana, C. hendersonii, C. heteroneura, C. hirsutella, C. hirta, C. hoodii, C. hystericina, C. idahoa, C. illota, C. infirminervia, C. inops, C. integra, C. interior, C. interrupta, C. jonesii, C. kelloggii, C. klamathensis, C. kobomugi, C. laeviculmis, C. lasiocarpa, C. leporina, C. leporinella, C. leptalea, C. leptopoda, C. limosa, C. livida, C. longii, C. luzulina, C. lyngbyei, C. macrocephala, C. macrochaeta, C. media, C. mendocinensis, C. mertensii, C. mesochorea, C. micropoda, C. microptera, C. multicaulis, C. nardina, C. nebrascensis, C. nervina, C. neurophora, C. nigricans, C. nudata, C. obnupta, C. pachycarpa, C. pachystachya, C. pansa, C. paysonis, C. pellita, C. pelocarpa, C. pendula, C. petasata, C. phaeocephala, C. pluriflora, C. praeceptorum, C. praticola, C. preslii, C. pumila, C. raynoldsii, C. retrorsa, C. rossii, C. saxatilis, C. scabriuscula, C. scirpoidea, C. scoparia, C. scopulorum, C. serpenticola, C. serratodens, C. sheldonii, C. simulata, C. spectabilis, C. stipata, C. straminiformis, C. subbracteata, C. subfusca, C. subnigricans, C. sychnocephala, C. tahoensis, C. tiogana, C. tribuloides, C. tumulicola, C. unilateralis, C. utriculata, C. vallicola, C. vernacula, C. vesicaria, C. viridula, C. vulpinoidea, C. whitneyi, C. zikae |
C. abrupta, C. agastachys, C. amplifolia, C. angustata, C. aperta, C. aquatilis, C. arcta, C. arenaria, C. atherodes, C. athrostachya, C. atrosquama, C. aurea, C. barbarae, C. bebbii, C. bolanderi, C. brainerdii, C. brevior, C. breweri, C. buchananii, C. buxbaumii, C. californica, C. canescens, C. capillaris, C. capitata, C. chordorrhiza, C. comans, C. comosa, C. concinna, C. concinnoides, C. cordillerana, C. crawfordii, C. cusickii, C. davyi, C. deflexa, C. densa, C. diandra, C. disperma, C. distans, C. douglasii, C. duriuscula, C. echinata, C. exsiccata, C. feta, C. filifolia, C. fissuricola, C. fracta, C. geyeri, C. gynocrates, C. gynodynama, C. halliana, C. harfordii, C. hassei, C. haydeniana, C. hendersonii, C. heteroneura, C. hirsutella, C. hirta, C. hoodii, C. hystericina, C. idahoa, C. illota, C. infirminervia, C. inops, C. integra, C. interior, C. interrupta, C. jonesii, C. kelloggii, C. klamathensis, C. kobomugi, C. laeviculmis, C. lasiocarpa, C. leporina, C. leporinella, C. leptalea, C. leptopoda, C. limosa, C. livida, C. longii, C. luzulina, C. macrocephala, C. macrochaeta, C. media, C. mendocinensis, C. mertensii, C. mesochorea, C. micropoda, C. microptera, C. multicaulis, C. nardina, C. nebrascensis, C. nervina, C. neurophora, C. nigricans, C. nudata, C. obnupta, C. pachycarpa, C. pachystachya, C. pansa, C. paysonis, C. pellita, C. pelocarpa, C. pendula, C. petasata, C. phaeocephala, C. pluriflora, C. praeceptorum, C. praegracilis, C. praticola, C. preslii, C. pumila, C. raynoldsii, C. retrorsa, C. rossii, C. saxatilis, C. scabriuscula, C. scirpoidea, C. scoparia, C. scopulorum, C. serpenticola, C. serratodens, C. sheldonii, C. simulata, C. spectabilis, C. stipata, C. straminiformis, C. subbracteata, C. subfusca, C. subnigricans, C. sychnocephala, C. tahoensis, C. tiogana, C. tribuloides, C. tumulicola, C. unilateralis, C. utriculata, C. vallicola, C. vernacula, C. vesicaria, C. viridula, C. vulpinoidea, C. whitneyi, C. zikae |
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Carex lyngbyei var. robusta |
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BC, 
CA, 
OR, 
WA
Flora NW, 
PNW Herbaria
WildflowerSearch
iNaturalist (observations)
USDA Plants Database
