Flora of North America species comparison

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Juncus oxymeris

point rush
Habit Herbs, perennial, rhizomatous, 3–6 dm.
Rhizomes

1–2 mm diam.
Culms

erect, 2–4 mm diam.
Cataphylls

0–1, straw-colored, apex narrowly acute.
Leaves

basal 1–3, cauline 3–4, straw-colored;

auricles absent;

blade 3–20 cm × 3–7 mm.
Inflorescences

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.
Flowers

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.
Capsules

exserted, chestnut brown, 1-locular, broadly lanceoloid to narrowly oblong, 3.3–4.7 mm, apex tapering to beak, separating at dehiscence.
Seeds

obovoid, 0.5 mm, not tailed.

Juncus oxymeris
Phenology Fruiting late spring–fall.
Habitat Stream and lake shores, montane meadows and seasonally emergent wetlands
Elevation 100–2000 m (300–6600 ft)
Distribution
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

Juncus oxymeris should be expected in Mexico (Baja California).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 22.
Parent taxa Juncaceae > Juncus > subg. Ensifolii
Sibling taxa
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
Synonyms J. acutiflorus
Name authority Engelmann
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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