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fragile-sheath sedge

Habit Plants cespitose, 60–115 cm tall.
Leaves

sheath fronts white-hyaline for at least 1 cm from the top, often throughout, extending 3–9 mm above base of blade;

blades 4–7 mm wide.

Inflorescences

3.5–8 cm × 10–16 mm, elongated; silvery to green or straw-colored;

spikes elliptical, overlapping, gynaecandrous.

Perigynia

broadly lanceolate to ovate, 2.9–4(4.8) × 1–1.7 mm, green to straw-colored, with 5–11 veins on each face;

beak white or straw-colored at tip, brown, usually unwinged; parallel-sided; and more or less entire for the distal 0.1–0.5 mm, 1.3–2(2.8) mm from top of achene to tip of beak;

stigmas 2.

Achenes

lenticular, 1.3–1.6 × 0.8–1.2 mm; (0.3)0.4–0.5 mm thick.

Female scales

(2.8)3.6–4.5 mm long; shorter or longer and narrower than the perigynia, white hyaline or straw-colored;

midrib green; straw-colored, or brown.

Carex fracta

Distribution
[WildflowerSearch map]
[BONAP county map]
Discussion

Seasonally damp places, open forests, roadsides, often in partial shade, from foothills to timberline. 200–2100 m. Casc, ECas, Sisk. CA, WA. Native.

Carex fracta is a coarse montane sedge with tall, leaning shoots and whitish or silvery inflorescences. Its loose leaf sheaths are prolonged at the mouth. Compare to C. feta.

Source Flora of Oregon, volume 1, page 201
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. feta, C. filifolia, C. fissuricola, 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
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