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green-sheath sedge

large-awn sedge, long-awn sedge

Habit Plants cespitose, 50–100 cm tall. Plants loosely cespitose; young roots with white, cream-colored, or yellowish felty hairiness; culms 20–50(70) cm long.
Leaves

sheath fronts green and veined throughout; except for a white-hyaline triangle to 6 mm long near the top, sometimes prolonged 1.5–6 mm above the base of the blade;

blades (2.5)3–4(5) mm wide.

2–5 mm wide; more or less white papillate (at 15×) on the lower surface.

Inflorescences

3.5–8 cm × 10– 13 mm, elongated but with overlapping spikes, green to straw-colored;

spikes ovate, gynaecandrous.

spikes 3–5;

lateral spikes female, 1–3 cm × 6–8 mm; lower spikes often dangling on moderately long peduncles but upper ones short-pedunculate to sessile; terminal spike male, 1.2– 3.2 cm × 3–8 mm.

Perigynia

ovate to broadly ovate, 3.2–4.2 × 1.7–2.1 mm, green, white, or straw-colored, with 1–8 veins on each face;

beak white or straw-colored at tip, winged and ciliate-serrulate; (1.5)1.8–2.4 mm from top of achene to tip of beak;

stigmas 2.

narrowly elliptic, 3.8–6.8 × 1.7–2.3 mm, light green or sometimes marked with dark purple, 10–15-veined;

beak 0.1–0.3 mm long;

stigmas 3.

Achenes

lenticular; (1.3)1.5–1.8 × 0.9–1.2 mm, 0.4–0.5 mm thick.

trigonous and filling about 60% of the perigynium body.

Female scales

2.7–3.5 mm long; shorter and narrower than the perigynia, white hyaline or straw-colored;

midrib green; straw-colored, or brown.

narrower and longer than the perigynia (though the scale body itself may be shorter), dark brown or black, often with a lighter midrib, awned; awns 1–3 mm long in Oregon (to 12 mm long in more northern sites).

2n

=60.

Carex feta

Carex macrochaeta

Distribution
[WildflowerSearch map]
[BONAP county map]
[BONAP county map]
Discussion

Wet meadows and prairies, margins of marshes and road ditches. 100–1500 m. BW, Casc, CR, ECas, Sisk, WV. CA, WA; north to British Columbia, WY. Native.

The neat, tidy appearance, overall green inflorescence, green leaf sheath fronts, and low elevation west-side range identify C. feta. Similar C. fracta is a coarser, sloppier plant with white-hyaline leaf sheath fronts and silvery inflorescences. The leaf sheath front of C. scoparia has such a narrow white-hyaline center that it can appear entirely green, but its usually curving inflorescence has a much finer texture with acuminate female scales and pointed perigynia, and its longer perigynia taper more gradually to the beak. See also discussions of C. longii and C. tribuloides, which have green sheath fronts.

Spray zones of waterfalls or on seepy, north-facing cliffs. 100–900 m. Casc, CR. WA; north to AK; Asia. Native.

Carex macrochaeta forms dense clumps of leaves that hang down from its cliff-side perch. Carex scirpoidea var. stenochlaena produces similar tufts in similar habitats, but has only one spike per culm. Oregon’s C. macrochaeta populations are small remnants left behind as this species retreated north with the glaciers.

Source Flora of Oregon, volume 1, page 200
Barbara Wilson, Richard Brainerd, Nick Otting
Flora of Oregon, volume 1, page 213
Barbara Wilson, Richard Brainerd, Nick Otting
Sibling taxa
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. 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. 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
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. 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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