OregonFlora species comparison

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Juncus longistylis

long-styled rush
Habit Plants perennial, 15–55 cm tall, rhizomatous.
Leaves

flat; grass-like, blue-green;

auricles prominent, usually rounded; (0.7)1– 1.8(2.5)mm.
Inflorescences

1–4(5) clusters; clusters 3–8(12)-flowered.
Flowers

tepals 6, usually 4–6 mm, dark brown, sometimes papillose;

stamens 6;

filaments (0.5)0.7–1 mm;

anthers (1.2)1.5–1.7(2) mm;

styles 0.6–1.3 mm.
Capsules

ovoid, obtuse or truncate; shorter than the tepals, dark brown, 3-chambered.
Seeds

0.4–0.6 × 0.2– 0.25 mm, faintly reticulate, apiculate.
2n

=40.

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

Wet meadows, springs, floodplains, ditches. 500–2000 m. BR, BW, Lava, Owy. CA, NV, ID, WA; north to British Columbia, east to Newfoundland and MI, southeast to CO and NM. Native.

This species is similar to J. regelii but with apiculate seeds. The well-developed auricles help separate it from J. orthophyllus.
Source Flora of Oregon, volume 1, page 280
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. 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
Web links 
Unless otherwise noted, all data comes from OregonFlora.



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