OregonFlora species comparison

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Juncus acutus

Juncus nevadensis var. inventus

(synonym of Juncus phaeocephalus)

Oregon rush
Leaves

slightly to strongly flattened; hollow, slightly to strongly blue-green, septate.
Inflorescences

usually 1–3(14) clusters or head-like clusters; clusters 20–45-flowered.
Flowers

filaments 0.7–1.4 mm;

anthers 0.6–1.2 mm, usually equaling the filaments.

Juncus acutus

Juncus nevadensis var. inventus
Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

Coastal dunes, shores, sandy swales, springs, cranberry farms, ditches. 0–50m. Est, Sisk. CA, WA; north to British Columbia. Native.

The peculiar leaves of this taxon are usually flattened but hollow and completely septate, which helps separate it from J. phaeocephalus, a California species with iris-like leaves that are solid and incompletely septate. Juncus phaeocephalus has been reported in error from Oregon several times.
Source Flora of Oregon, volume 1, page 281
Peter Zika
Sibling taxa
J. acuminatus, J. anthelatus, J. articulatus, J. balticus, J. bolanderi, J. brevicaudatus, J. breweri, J. bryoides, J. bufonius, J. bulbosus, J. canadensis, J. capillaris, J. capitatus, J. compressus, J. confusus, J. conglomeratus, J. covillei, J. diffusissimus, J. drummondii, J. dudleyi, J. effusus, J. ensifolius, J. ensifolius x Juncus nevadensis, J. exiguus, J. falcatus, J. filiformis, J. gerardi, J. hemiendytus, J. hesperius, J. howellii, J. inflexus, J. interior, J. kelloggii, J. laccatus, J. lescurii, J. longistylis, J. marginatus, J. mertensianus, J. mexicanus, J. nevadensis, J. occidentalis, J. orthophyllus, J. oxymeris, J. parryi, J. patens, J. pelocarpus, J. planifolius, J. ranarius, J. regelii, J. saximontanus, J. supiniformis, J. tenuis, J. tiehmii, J. torreyi, J. triglumis, J. trilocularis, J. uncialis
J. nevadensis var. inventus, J. nevadensis var. nevadensis
Synonyms Juncus phaeocephalus, Juncus phaeocephalus var. glomeratus, Juncus phaeocephalus var. paniculatus, Juncus phaeocephalus var. phaeocephalus
Web links 
Unless otherwise noted, all data comes from OregonFlora.



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