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narrow-panicle rush, short-tail rush

Brewer's rush, salt or Brewer's rush, salt rush

Habit Herbs, perennial, cespitose, 1.4–5.5(–7) dm. Herbs, perennial, 3–14 dm.
Rhizomes

long- creeping.

Culms

erect, terete, 1–3 mm diam., smooth.

erect, 1–3 mm diam.

Cataphylls

0–1, straw-colored to pink, apex acute.

several.

Leaves

basal 1–3, cauline 1–2;

auricles 0.5–3 mm, apex rounded to truncate, scarious;

blade terete, 1.5–25 cm × 0.5–2.5 mm.

blade absent.

Inflorescences

terminal panicles or racemes of 2–35 heads, 1–12 cm, branches erect;

primary bract erect;

heads 2–8-flowered, ellipsoid to narrowly obconic, 2–9 mm diam.

lateral, 3–many-flowered, mostly loose;

primary bract much longer than inflorescence.

Flowers

tepals green to light brown, lanceolate;

outer tepals 2.3–3.1 mm, apex acuminate to rarely obtuse;

inner tepals 2.5–3.2 mm, apex acuminate;

stamens 3 (or 6), anthers 1/4–1/2 filament length.

variously pedicellate;

bracteoles membranous;

tepals green, lanceolate, 5–8 mm, margins brown;

inner series loosely subtending capsule at maturity, usually slightly shorter, margins scarious to clear, acutish;

stamens 6, filaments 0.2–1.1 mm, anthers 0.9–2.3 mm;

style 1–1.5 mm.

Capsules

exserted, chestnut brown, imperfectly 3-locular, narrowly ellipsoid to prismatic, 3.2–4.8 mm, apex acute proximal to beak, valves separating at dehiscence.

3-locular, oblate to narrowly ovoid, 4–7 mm, shorter than or nearly equal to perianth.

Seeds

fusiform, 0.7–1.2 mm, tailed;

body covered with whitish translucent veil.

dark amber, oblate to ellipsoid, 0.4–0.7 mm.

2n

= 80.

Juncus brevicaudatus

Juncus lesueurii

Phenology Fruiting mid summer–fall. Flowering and fruiting summer.
Habitat Generally in acidic or peaty moist sites, including emergent shorelines and aroundg hot springs Borders of salt or freshwater marshes and usually near dunes along the coast
Elevation 100–2500 m (300–8200 ft) 0–500 m (0–1600 ft)
Distribution
from FNA
AZ; CO; CT; MA; MD; ME; MI; MN; MT; NC; NH; NY; OR; PA; RI; TN; UT; VA; VT; WI; WV; WY; AB; BC; MB; NB; NL; NS; ON; PE; QC; SK
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

Populations from about around hot springs in the west have been separated as Juncus tweedyi Rydberg, but no morphologic distinction appears to exist between J. tweedyi and J. brevicaudatus.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 22. FNA vol. 22.
Parent taxa Juncaceae > Juncus > subg. Septati Juncaceae > Juncus > subg. Genuini
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. 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. 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. 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. 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. canadensis var. brevicaudatus, J. canadensis var. coarctatus, J. canadensis var. kuntzei, J. coarctatus, J. kuntzei, J. tweedyi J. balticus subsp. pacificus, J. lesueurii var. tracyi
Name authority (Engelmann) Fernald: Rhodora 6: 35. (1904) Bolander: Proceedings of the California Academy of Sciences 2: 179. 1863 (as leseurii)
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