Updated January 11, 2023
Unidentified Sedges: Help identify these unknown sedges.
Abruptly Beaked Sedge: Carex abrupta -
Ample-leaved Sedge, Bigleaf Sedge,Big-leaf Sedge: Carex amplifolia -
Many-fruit Sedge, Widefruit Sedge, Wide-fruited Sedge: Carex angustata (Synonyms: Carex egregia, Carex eurycarpa, Carex eurycarpa var. attenuata, Carex oxycarpa, Carex striata var. erecta) -
Columbia Sedge, Columbian Sedge: Carex aperta (Synonyms: Carex accedens, Carex acutina var. tenuior, Carex stylosa var. virens, Carex turgidula) -
Water Sedge: Carex aquatilis var. aquatilis (Synonyms: Carex acutinella, Carex aquatilis ssp. altior, Carex aquatilis var. altior, Carex aquatilis var. substricta, Carex interimus, Carex pachystoma, Carex substricta, Carex suksdorfii, Carex variabilis) -
Sitka Sedge: Carex aquatilis var. dives (Synonyms: Carex aquatilis var. sitchensis, Carex dives, Carex howellii, Carex panda, Carex sitchensis) -
Northern Cluster Sedge, Northern Clustered Sedge: Carex arcta (Synonyms: Carex canescens ssp. polystachya, Carex canescens var. oregana, Carex heleonastes var. scabriuscula, Carex kunzei) -
Awned Sedge, Wheat Sedge: Carex atherodes -
Slenderbeak Sedge, Slender-beak Sedge: Carex athrostachya (Synonym: Carex atherostachya misspelled) -
Blackscaled Sedge, Brainerd's Sedge, Lesser Blackscale Sedge: Carex atrosquama (Synonyms: Carex apoda, Carex atrata ssp. atrosquama, Carex atrata var. atrosquama) -
Golden Sedge, Pumpkin Sedge: Carex aurea -
Back's Sedge: Carex backii (Synonyms: Carex backii var. subrostrata, Carex durifolia, Carex durifolia var. subrostrata) -
Bebb's Sedge: Carex bebbii (Synonyms: Carex tribuloides, Carex tribuloides var. bebbii) -
Bolander's Sedge: Carex bolanderi (Synonyms: Carex bolanderi ssp. bolanderi, Carex deweyana, Carex deweyana var. bolanderi) -
Brown Sedge, Brownish Sedge: Carex brunnescens ssp. brunnescens
Brown Bog Sedge, Buxbaum's Sedge: Carex buxbaumii (Synonyms: Carex buxbaumii var. anticostensis, Carex holmiana, Carex polygama) -
Gray Sedge, Silvery Sedge: Carex canescens (Synonyms: Carex curta, Carex canescens ssp. canescens) -
Hair Sedge, Hairlike Sedge, Hair-like Sedge: Carex capillaris (Synonyms: Carex boecheriana, Carex capillaris ssp. chlorostachys, Carex capillaris ssp. robustior, Carex capillaris var. elongata, Carex capillaris var. fuscidula, Carex capillaris var. major, Carex chlorostachys, Carex fuscidula, Carex tiogana) -
Capitate Sedge: Carex capitata (Synonym: Carex capitata ssp. capitata) -
Cordroot Sedge, Creeping Sedge, Rope-root Sedge: Carex chordorrhiza -
Bearded Sedge, Bristly Sedge, Longhair Sedge: Carex comosa -
Low Northern Sedge: Carex concinna -
Northwestern Sedge: Carex concinnoides -
Cordilleran Sedge: Carex cordillerana -
Cusick's Sedge: Carex cusickii (Synonyms: Carex obovoidea, Carex teretiuscula, Carex teretiuscula var. ampla) -
Constance's Sedge, Davy's Sedge: Carex davyi (Synonym: Carex constanceana) -
Mountain Mat Sedge: Carex deflexa var. boothii -
Dewey Sedge: Carex deweyana var. deweyana -
Lesser Panicled Sedge, Lesser Tussock Sedge: Carex diandra -
Shortleaf Sedge, Short-leaf Sedge, Softleaf Sedge: Carex disperma (Synonym: Carex tenella) -
Douglas' Sedge: Carex douglasii -
Narrowleaf Sedge, Needleaf Sedge: Carex duriuscula (Synonym: Carex eleocharis, Carex stenophylla, Carex stenophylla ssp. eleocharis, Carex stenophylla var. enervis) -
Bristly Sedge, Muricate Sedge, Prickly Sedge, Star Sedge, Stellate Sedge: Carex echinata ssp. echinata (Synonyms: Carex angustior, Carex angustior var. gracilenta, Carex cephalantha, Carex echinata var. angustata, Carex echinata var. echinata, Carex hawaiiensis, Carex josselynii, Carex laricina, Carex leersii, Carex muricata, Carex muricata var. angustata, Carex muricata var. cephalantha, Carex muricata var. laricina, Carex ormantha, Carex phyllomanica var. angustata, Carex phyllomanica var. ormantha, Carex svensonis) -
Big Inflated Sedge, Oxbow Sedge, Western Inflated Sedge: Carex exsiccata (Synonym: Carex vesicaria var. major) -
Threadleaf Sedge, Wool Grass: Carex filifolia var. filifolia (Synonyms: Carex elyniformis, Carex exserta, Carex filifolia, Carex filifolia var. erostrata) -
Yellow Sedge, Yellow-green Sedge: Carex flava (Synonyms: Carex flava var. fertilis, Carex flava var. gaspensis, Carex flava var. graminis, Carex flava var. laxior, Carex flava var. rectirostra, Carex laxior, Carex nevadensis ssp. flavella) - Oregon Flora Project name?
Fragile Sheathed Sedge, Fragile-sheath Sedge, Fragile-sheathed Sedge: Carex fracta -
Elk Sedge, Geyer's Sedge: Carex geyeri -
Northern Bog Sedge, Yellow Bog Sedge: Carex gynocrates (Synonym: Carex dioica, Carex dioica ssp. gynocrates, Carex dioica var. gynocrates, Carex parallela) -
False Golden Sedge, Salt Sedge: Carex hassei (Synonyms: Carex aurea, Carex aurea var. androgyna, Carex garberi, Carex saliniformis) -
Cloud Sedge, Hayden's Sedge: Carex haydeniana (Synonyms: Carex festiva var. decumbens, Carex haydenii, Carex macloviana ssp. haydeniana, Carex nubicola) -
Blackened Sedge, Different-nerve Sedge, Different-nerved Sedge, Smooth-fruit Sedge: Carex heteroneura var. epapillosa (Synonym: Carex atrata, Carex atrata var. erecta, Carex epapillosa, Carex heteronerua) -
Different-veined Sedge: Carex heteroneura var. heteroneura (Synonym: Carex heteroneura var. heteroneura) -
Hood's Sedge: Carex hoodii -
Bottlebrush Sedge, Porcupine Sedge: Carex hystericina (Synonym: Carex hystricina misspelled) -
Idaho Sedge: Carex idahoa (Synonym: Carex parryana, Carex parryana ssp. idahoa) -
Sheep Sedge, Small-head Sedge, Small-headed Sedge: Carex illota -
Weak-veined Sedge: Carex infirminervia (Synonyms: Carex bolanderi ssp. infirminerivia, Carex deweyana) -
Long-stolon Sedge: Carex inops ssp. inops (Synonyms: Carex pensylvanica, Carex pensylvanica var. vespertina) -
Smoothbeak Sedge, Smooth-beaked Sedge: Carex integra -
Inland Sedge: Carex interior (Synonyms: Carex interior ssp. charlestonensis, Carex interior var. keweenawensis, Carex scirpoides) -
Greenfruit Sedge, Green-fruited Sedge: Carex interrupta (Synonym: Carex interrupta var. distenta) -
Jones' Sedge: Carex jonesii (Synonym: Carex nervina var. jonesii) -
Smoothstem Sedge, Smooth-stem Sedge, Smooth-stemmed Sedge: Carex laeviculmis (Synonym: Carex deweyana ssp. sparsiflora) -
American Woollyfruit Sedge, Slender Bog Sedge, Slender Woolly Sedge, Woollyfruit Sedge, Woolly-fruited Sedge: Carex lasiocarpa var. americana (Synonym: Carex lasiocarpa ssp. americana) -
Few-ribbed Sedge, Lakeshore Sedge: Carex lenticularis var. impressa (Synonyms: Carex limnaea, Carex paucicostata) -
Kellogg's Sedge, Lakeshore Sedge: Carex lenticularis var. lipocarpa (Synonyms: Carex kelloggii, Carex lenticularis var. lenticularis, Carex lenticularis var. pallida) -
Eggbract Sedge, Hare Sedge: Carex leporina (Synonyms: Carex ovalis, Carex tracyi) -
Little Hare Sedge, Sierra Hare Sedge: Carex leporinella -
Bristle-stalked Sedge, Bristlystalked Sedge: Carex leptalea (Synonyms: Carex jimcalderi, Carex leptalea ssp. leptalea, Carex leptalea ssp. pacifica, Carex leptalea var. harperi, Carex leptalea var. tayloris) -
Dewey's Sedge, Taperfruit Shortscale Sedge: Carex leptopoda (Synonyms: Carex deweyana, Carex deweyana ssp. leptopoda, Carex deweyana var. leptopoda) -
Mud Sedge: Carex limosa -
Spring Sedge, Woodrush Sedge: Carex luzulina var. ablata (Synonyms: Carex ablata, Carex luzulina, Carex luzulina var. luzulina, Carex owyheensis) -
Boreal Bog Sedge, Poor Sedge: Carex magellanica ssp. irrigua (Synonyms: Carex magellanica var. irrigua, Carex paupercula, Carex paupercula var. brevisquama, Carex paupercula var. irrigua, Carex paupercula var. pallens) -
Closehead Sedge, Scandinavian Sedge: Carex media (Synonyms: Carex alpina, Carex alpina var. inferalpina, Carex angarae, Carex norvegica, Carex norvegica ssp. inferalpina, Carex norvegia var. inferalpina, Carex norvegica ssp. norvegica, Carex vahlii, Carex vahlii var. inferalpina) -
Merten's Sedge: Carex mertensii (Synonym: Carex columbiana) -
Pyrenean Sedge, Pyrenees Sedge: Carex micropoda (Synonyms: Carex crandallii, Carex jacobi-peteri, Carex pyrenaica, Carex pyrenaica ssp. micropoda, Carex pyrenaica var. mondsii) -
Smallwing Sedge, Small-winged Sedge: Carex microptera (Synonyms: Carex festivella, Carex limnophila, Carex macloviana ssp. festivella, Carex macloviana var. microptera, Carex microptera var. crassinervia, Carex microptera var. limnophila) -
Manystem Sedge, Many-stemmed Sedge: Carex multicaulis -
Manyrib Sedge, Many-rib Sedge, Many-ribbed Sedge: Carex multicostata (Synonym: Carex pachycarpa) -
Hepburn's Sedge, Spikenard Sedge: Carex nardina var. hepburnii (Synonyms: Carex elyniformis, Carex hepburnii, Carex nardina spp. hepburnii, Carex nardina var. atriceps, Carex nardina, Carex stantonensis) -
Nebraska Sedge: Carex nebrascensis (Synonyms: Carex jamesii, Carex nebrascensis var. eruciformis, Carex nebrascensis var. praevia, Carex nebrascensis var. ultriformis, Carex nebraskensis) -
Alpine Nerved Sedge: Carex neurophora -
Black Alpine Sedge: Carex nigricans -
Norway Sedge: Carex norvegica - ?
Black Sedge: Carex nova (Synonym: Carex elbertiana) -
Naked Sedge, Torrent Sedge: Carex nudata (Synonyms: Carex acutina, Carex bishallii, Carex hallii, Carex nudata var. anomala, Carex suborbiculata, Carex tenacissima) -
Chamisso Sedge, Thick-head Sedge, Thick-headed Sedge: Carex pachystachya (Synonyms: Carex festiva var. gracilis, Carex festiva var. pachystachya, Carex macloviana ssp. pachystachya, Carex macloviana var. pachystachya, Carex pachystachya ssp. pachystachya, Carex pachystachya var. gracilis, Carex pachystachya var. monds-coulteri, Carex platylepis, Carex pyrophila) -
Payson's Sedge: Carex paysonis (Synonyms: Carex podocarpa, Carex podocarpa var. paysonis, Carex tolmiei) -
Woolly Sedge: Carex pellita (Synonyms: Carex lanuginosa, Carex lasiocarpa var. latifolia) -
Duskyseed Sedge, New Sedge: Carex pelocarpa (Synonyms: Carex nova, Carex nova var. pelocarpa) -
Liddon Sedge, Liddon's Sedge: Carex petasata (Synonym: Carex liddonii) -
Dunhead Sedge, Mountain Hare Sedge: Carex phaeocephala (Synonym: Carex eastwoodiana) -
Manyflower Sedge, Many-flower Sedge, Many-flowered Sedge, Several-flower Sedge: Carex pluriflora (Synonyms: Carex rariflora var. pluriflora, Carex stygia) -
Early Sedge, Teacher's Sedge: Carex praeceptorum (Synonyms: Carex heleonastes var. dubia, Carex praeceptorium) -
Black Creeper Sedge, Clustered Field Sedge: Carex praegracilis (Synonym: Carex camporum) -
Meadow Sedge: Carex praticola (Synonyms: Carex piperi, Carex praticola var. subcoriacea) -
Presl Sedge, Presl's Sedge: Carex preslii -
Raynold's Sedge: Carex raynoldsii (Synonym: Carex lyallii) -
Knotsheath Sedge, Retrorse Sedge: Carex retrorsa -
Ross's Sedge: Carex rossii (Synonyms: Carex brevipes, Carex deflexa ssp. media, Carex deflexa var. farwellii, Carex deflexa var. rossii, Carex diversistylis, Carex farwellii, Carex novae-angliae, Carex novae-angliae var. rossii) -
Beaked Sedge, Rostrate Sedge: Carex rostrata (Synonym: Carex rostrata var. ambigens) -
Limestone Sedge, Rock Sedge: Carex saxatilis var. major (Synonyms: Carex ambusta, Carex compacta, Carex miliaris, Carex physocarpa, Carex xphsocarpoides (C. saxatilis x utriculata), Carex rhomalea, Carex rotundata var. compacta, Carex saxatilis, Carex saxatilis ssp. laxa, Carex saxatilis var. major, Carex saxatilis var. miliaris, Carex saxatilis var. rhomalea) -
Western Singlespike Sedge, Western Single Spiked Sedge: Carex scirpoidea ssp. pseudoscirpoidea (Synonyms: Carex pseudoscirpoidea, Carex scirpoidea var. pseudoscirpoidea) -
Northern Singlespike Sedge, Snowbank Sedge: Carex scirpoidea ssp. scirpoidea (Synonyms: Carex athabascensis, Carex scirpiformis, Carex scirpoidea var. scirpiformis) -
Alaskan Single-spiked Sedge: Carex scirpoidea ssp. stenochlaena (Synonym: Carex scirpoidea var. stenochlaena, Carex stenochlaena) -
Rocky Mountain Sedge, Mountain Sedge, Sierra Alpine Sedge: Carex scopulorum var. bracteosa (Synonyms: Carex campylocarpa, Carex campylocarpa ssp. affinis, Carex gymnoclada, Carex scopulorum var. scopulorum) -
Firethread Sedge, Saw-leaved Sedge: Carex scopulorum var. prionophylla (Synonyms: Carex miserabilis, Carex prionophylla) -
Sheldon's Sedge: Carex sheldonii -
Analogue Sedge, Shortbeaked Sedge: Carex simulata -
Showy Sedge: Carex spectabilis (Synonyms: Carex invisa, Carex nigella, Carex spectabilis var. superba, Carex tolmiei, Carex tolmiei var. invisa) -
Awl-fruit Sedge, Sawbeak Sedge: Carex stipata var. stipata -
Mt. Shasta Sedge, Shasta Sedge: Carex straminiformis -
Brown Sedge, Rusty Sedge, Sierra Slender Sedge: Carex subfusca (Synonyms: Carex macloviana, Carex macloviana ssp. subfusca, Carex stenoptera, Carex teneriformis) -
Dark Mountain Sedge, Nearlyblack sedge: Carex subnigricans (Synonym: Carex rachillis) -
Manyhead Sedge, Many-headed Sedge: Carex sychnocephala -
Tahoe Sedge, Tahoe Hare Sedge: Carex tahoensis (Synonym: Carex eastwoodiana) -
Quill Sedge, Slender Sedge: Carex tenera var. tenera (Synonym: Carex tenera var. echinodes) -
Sparseflower Sedge, Sparse-flowered Sedge: Carex tenuiflora -
Tioga Pass Sedge: Carex tiogana -
Lateral Sedge, One-sided Sedge: Carex unilateralis -
Beaked Sedge, Bladder Sedge, Inflated Sedge, Northwest Territory Sedge, Shore Sedge, Southern Beaked Sedge: Carex utriculata (Synonyms: Carex inflata var. utriculata, Carex laevirostris, Carex rhynchophysa, Carex rostrata, Carex rostrata var. utriculata) -
Valley Sedge: Carex vallicola (Synonym: Carex vallicola var. vallicola) -
Foetid Sedge, Native Sedge: Carex vernacula (Synonyms: Carex foetida, Carex foetida var. vernacula) -
Blister Sedge, Inflated Sedge, Small Inflated Sedge: Carex vesicaria var. vesicaria (Synonyms: Carex inflata, Carex vesicaria) -
Little Green Sedge: Carex viridula ssp. viridula (Synonyms: Carex oederi, Carex oederi ssp. viridula, Carex oederi var. recterostrata, Carex oederi var. viridula, Carex serotina, Carex viridula var. viridula) -
Fox Sedge: Carex vulpinoidea (Synonyms: Carex microsperma, Carex multiflora, Carex multiflora var. microsperma, Carex scabrior, Carex setacea, Carex vulpinoidea var. microsperma, Carex vulpinoidea var. pycnocephala, Carex vulpinoidea var. scabrior, Carex vulpinoidea var. segregata, Carex vulpinodea var. setacea, Carex vulpinoidea var. vulpinoidea) -
Whitney's Sedge: Carex whitneyi (Synonyms: Carex flaccifolia, Carex jepsonii) -