|
point rush
|
prairie rush, slender juncus, western rush
|
| Herbs, perennial, rhizomatous, 3–6 dm. |
Herbs, perennial, cespitose, 3–6 dm. |
1–2 mm diam. |
densely branching. |
erect, 2–4 mm diam. |
few–20. |
0–1, straw-colored, apex narrowly acute. |
|
basal 1–3, cauline 3–4, straw-colored; auricles absent; blade 3–20 cm × 3–7 mm. |
basal, (1–)2–3; auricles 0.5–1(–1.5) mm, apex acutish, membranous; blade flat, 5–15 cm × 0.5–1.3 mm, margins entire. |
panicles of 10–50 heads, 6–20 cm, erect to ascending branches; primary bract erect; heads 3–11-flowered, turbinate to hemispheric, 4–8 mm diam. |
5–50-flowered, somewhat loose, 1–7 cm; primary bract usually longer than inflorescence. |
tepals straw-colored, lanceolate, 2.5–3.2 mm, nearly equal, apex acute to narrowly acuminate, mucronate; stamens 6, anthers 0.5–1.5 times length of filaments. |
bracteoles 2; tepals greenish, lanceolate, (3.5–)5 mm; outer and inner series nearly equal; stamens 6, filaments 0.5–1 mm, anthers 0.1–0.3 mm; style 0.1–0.2 mm. |
exserted, chestnut brown, 1-locular, broadly lanceoloid to narrowly oblong, 3.3–4.7 mm, apex tapering to beak, separating at dehiscence. |
light brown, 1-locular to pseudo-3-locular, ellipsoid, (3–)5–4.5 × 1.2–1.8 mm, nearly equal to shorter than tepals. |
obovoid, 0.5 mm, not tailed. |
tan, ellipsoid to lunate, 5.5–0.7 mm, not tailed. |
|
= 80. |
|
|
|
|
| Fruiting late spring–fall. |
Flowering spring–early summer. |
| Stream and lake shores, montane meadows and seasonally emergent wetlands |
Moist, usually exposed sites in clayey or sandy soil around springs, along rivers and streams, and around lakes |
| 100–2000 m (300–6600 ft) |
below 2300 m (below 7500 ft) |
|
CA; OR; WA; BC
|
AZ; CA; ID; NV; OR; WA
|
Juncus oxymeris should be expected in Mexico (Baja California). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Juncus occidentalis should perhaps be considered a robust variant of J. tenuis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 22. |
FNA vol. 22. |
| Juncaceae > Juncus > subg. Ensifolii |
Juncaceae > Juncus > subg. Poiophylli |
J. acuminatus, J. acutiflorus, J. acutus, J. alpinoarticulatus, J. anthelatus, J. arcticus, J. articulatus, J. biglumis, J. bolanderi, J. brachycarpus, J. brachycephalus, J. brachyphyllus, J. brevicaudatus, J. bryoides, J. bufonius, J. bulbosus, J. caesariensis, J. canadensis, J. capillaris, J. capitatus, J. castaneus, J. chlorocephalus, J. compressus, J. confusus, J. cooperi, J. coriaceus, J. covillei, J. debilis, J. dichotomus, J. diffusissimus, J. drummondii, J. dubius, J. dudleyi, J. effusus, J. elliottii, J. ensifolius, J. falcatus, J. filiformis, J. filipendulus, J. georgianus, J. gerardii, J. greenei, J. gymnocarpus, J. hallii, J. hemiendytus, J. howellii, J. inflexus, J. interior, J. kelloggii, J. leiospermus, J. lesueurii, J. longistylis, J. luciensis, J. macrandrus, J. macrophyllus, J. marginatus, J. maritimus, J. megacephalus, J. mertensianus, J. militaris, J. nevadensis, J. nodatus, J. nodosus, J. occidentalis, J. orthophyllus, J. parryi, J. patens, J. pelocarpus, J. pervetus, J. phaeocephalus, J. polycephalus, J. regelii, J. repens, J. roemerianus, J. scirpoides, J. secundus, J. squarrosus, J. stygius, J. subcaudatus, J. subtilis, J. supiniformis, J. tenuis, J. texanus, J. textilis, J. tiehmii, J. torreyi, J. trifidus, J. triformis, J. triglumis, J. trigonocarpus, J. uncialis, J. validus, J. vaseyi, J. xiphioides |
J. acuminatus, J. acutiflorus, J. acutus, J. alpinoarticulatus, J. anthelatus, J. arcticus, J. articulatus, J. biglumis, J. bolanderi, J. brachycarpus, J. brachycephalus, J. brachyphyllus, J. brevicaudatus, J. bryoides, J. bufonius, J. bulbosus, J. caesariensis, J. canadensis, J. capillaris, J. capitatus, J. castaneus, J. chlorocephalus, J. compressus, J. confusus, J. cooperi, J. coriaceus, J. covillei, J. debilis, J. dichotomus, J. diffusissimus, J. drummondii, J. dubius, J. dudleyi, J. effusus, J. elliottii, J. ensifolius, J. falcatus, J. filiformis, J. filipendulus, J. georgianus, J. gerardii, J. greenei, J. gymnocarpus, J. hallii, J. hemiendytus, J. howellii, J. inflexus, J. interior, J. kelloggii, J. leiospermus, J. lesueurii, J. longistylis, J. luciensis, J. macrandrus, J. macrophyllus, J. marginatus, J. maritimus, J. megacephalus, J. mertensianus, J. militaris, J. nevadensis, J. nodatus, J. nodosus, J. orthophyllus, J. oxymeris, J. parryi, J. patens, J. pelocarpus, J. pervetus, J. phaeocephalus, J. polycephalus, J. regelii, J. repens, J. roemerianus, J. scirpoides, J. secundus, J. squarrosus, J. stygius, J. subcaudatus, J. subtilis, J. supiniformis, J. tenuis, J. texanus, J. textilis, J. tiehmii, J. torreyi, J. trifidus, J. triformis, J. triglumis, J. trigonocarpus, J. uncialis, J. validus, J. vaseyi, J. xiphioides |
| J. acutiflorus |
J. tenuis var. occidentalis, J. tenuis var. congestus |
| Engelmann |
(Coville) Wiegand: Bulletin of the Torrey Botanical Club 27: 521. (1900) |
| |
BC, 
CA, 
OR, 
WA
Flora NW, 
PNW Herbaria
WildflowerSearch
iNaturalist (observations)
USDA Plants Database
