Flora of North America species comparison

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Juncus confusus

Colorado rush
Habit Herbs, perennial, cespitose, 3–5 dm.
Rhizomes

densely branched.
Culms

(1–)5–15(–25).
Cataphylls

1–3.
Leaves

basal, 2–4;

auricles 0.3–0.7 mm, apex usually rounded, scarious to membranaceous;

blade flat, 3–15 cm × 0.4–1 mm, margins entire.
Inflorescences

3–25-flowered, congested, 1–2.5 × 1–2 cm;

primary bract usually exceeding inflorescence.
Flowers

not secund;: bracteoles 2;

tepals dark green to blackish, usually with brownish midstripe, lanceolate to lanceolate-ovate, 3.5–4.3 mm, margins clear;

outer and inner series nearly equal;

stamens 6, filaments 0.6–0.9 mm, anthers 0.3–0.5 mm;

style 0.1 mm.
Capsules

tan or darker, 3-locular, nearly globose to widely obvoid, 2.5–3.5 × 1.3–1.8 mm, shorter than perianth.
Seeds

yellowish, obovoid to ellipsioid, 0.4–0.5 mm, not tailed.
2n

= 80.

Juncus confusus
Phenology Flowering and fruiting late spring–summer.
Habitat Moist, open grasslands and meadows
Elevation 700–3400 m (2300–11200 ft)
Distribution
from FNA
AZ; CA; CO; ID; MT; NM; NV; OR; SD; UT; WA; WY; AB; BC; SK
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 22.
Parent taxa Juncaceae > Juncus > subg. Poiophylli
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. 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. 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
Synonyms J. exilis
Name authority Coville: Proceedings of the Biological Society of Washington 10: 127. (1896)
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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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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