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cute sedge

sanddune sedge

Habit Plants rhizomatous, shoots arising singly or in clumps, 5.5–20 cm tall; plant bases reddish brown. Plants more or less dioecious; rhizomatous, the rhizomes little-branched, blackish, stout, 1.8–2.6 mm in diameter; culms 8–40 cm tall, arising singly or in small clusters; plant bases dark brown to blackish.
Leaves

sheath fronts membranous;

blades 1–3.1 mm wide.

1.7–3.8 mm wide, mainly clustered at the base of the shoot.

Inflorescences

basal spikes absent; lowest bract sheath inflated, 2–5 mm long;

blade absent or less than 2 cm long, purpletinged;

lateral spikes 2–3, crowded near the terminal spike, 0.4–0.7 × 0.2–0.4 mm; terminal spike male; tiny, 0.3–0.7 cm × 1.1–1.5 mm.

1.2–2.5 cm long; male inflorescences 5–9(11) mm wide; female inflorescences (6)8–16 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.

Perigynia

elliptic, 2.3–3.3(3.5) × 1.1–1.4 mm, pubescent with crinkled hairs; veinless but with 2 ribs, bases succulent, withering when dry;

beak 0.3–0.4 mm long;

stigmas 3.

ovate to obovate, 3.1–4.2 × 1.3–1.8 mm, dark brown to nearly black;

beak 0.7–1.5 mm long;

stigmas 2.

Achenes

rounded to trigonous.

lenticular.

Male scales

dark reddish brown with whitish margins.

Female scales

smaller than the perigynia; reddish brown; ovate;

apex obtuse, minutely ciliate.

dark reddish brown to purplish black with hyaline margins, similar in color to or darker than the perigynia, awned or not, hiding the perigynia.

Anthers

1.3–1.4 mm long.

with a tiny bristly awn.

2n

=54.

Carex concinna

Carex pansa

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

Stream banks, bogs, meadows, and open forests, on stable, usually calcareous substrates that are wet in spring but may dry out later. 1600–2500 m. BW. North to AK, east to Newfoundland. Native.

Carex concinna is recognized by its hairy perigynia, tiny staminate spike, and absent or tiny inflorescence bract. It lacks basal spikes among the leaf bases.

Coastal sand dunes and sandy meadows. 0–50 m. Est. CA, WA; north to British Columbia. Native.

Carex pansa forms a green or yellow-green turf on stabilized sand dunes. Its female inflorescences are large and dark. Carex praegracilis, widespread east of the Cascades and in southwestern Oregon, is extremely similar, but has narrower, lighter-colored, narrower female inflorescences. Carex pansa may grow with C. brevicaulis, which has much-branched, brown rhizomes, reddish shoot bases, and pubescent perigynia.

Source Flora of Oregon, volume 1, page 195
Barbara Wilson, Richard Brainerd, Nick Otting
Flora of Oregon, volume 1, page 218
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. 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. 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. 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. 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
Web links