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basket rush, mat or basket rush

dagger rush, dagger-leaf rush, sword-leaf rush, three-stamen rush

Habit Herbs, perennial, 10–20 dm. Herbs, perennial, rhizomatous, 2–6 dm.
Rhizomes

long- creeping.

2–3 mm diam.

Culms

erect, 2–5 mm diam.

erect, 2–6 mm diam.

Cataphylls

several.

0 or 1–2, straw-colored, apex narrowly acute.

Leaves

blade absent.

basal 1–3, cauline 2–6, straw-colored;

auricles absent;

blade 2–25 cdm x 1.5–6 mm.

Inflorescences

lateral, many flowered, loose;

primary bract barely exceeding to many times longer than inflorescence.

panicles or racemes of 2–50 heads or heads solitary, 2–14 cm, erect or ascending branches;

primary bract erect;

heads 3–70-flowered, obovoid to globose, 7–11 mm diam.

Flowers

variously pedicellate;

bracteoles membranous;

tepals greenish to pale brown, lanceolate, 3.5–5 mm;

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

stamens 6, filaments 0.3–0.9 mm, anthers 1–2.5 mm;

style 1–1.5 mm.

tepals green to brown or reddish brown, lanceolate;

outer tepals 2.7–3.6(–4) mm, apex acuminate;

inner tepals 2.2–3(–3.5) mm, nearly equal, apex acuminate;

stamens 3 or 6;

anthers ½1/2 to equal filament length.

Capsules

dark brown, 3-locular, oblate to narrowly ovoid, 3–4 mm, nearly equal to perianth.

included to slightly exserted, chestnut to dark brown, 1-locular, oblong, 2.4–4.3 mm, apex obtuse proximal to beak.

Seeds

dark amber, oblate to ellipsoid, 0.5–0.8 mm.

elliptic to obovate, 0.4–1 mm, occasionally tailed.

Juncus textilis

Juncus ensifolius

Phenology Flowering and fruiting summer.
Habitat Moist or wet exposed areas
Elevation 100–1800 m (300–5900 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
AK; AZ; CA; CO; ID; MT; NM; NV; NY; OR; SD; TX; UT; WA; WI; WY; AB; BC; ON; QC; SK [Introduced in Europe and East Asia]
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

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

Key
1. Stamens 3
var. ensifolius
1. Stamens 6
var. montanus
Source FNA vol. 22. FNA vol. 22.
Parent taxa Juncaceae > Juncus > subg. Genuini 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. 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. 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. 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
Subordinate taxa
J. ensifolius var. ensifolius, J. ensifolius var. montanus
Synonyms J. lesueurii var. elatus
Name authority Buchenau: Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen 17: 336. (1903) Wikstrom: Kongl. Vetenskaps Academiens Handlingar 2: 274. (1823)
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