Flora of North America species comparison

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Juncus textilis

Juncus biglumis

basket rush, mat or basket rush

two-flower rush, two-glumed rush
Habit Herbs, perennial, 10–20 dm. Herbs, perennial, loosely cespitose, 0.25–1.6 dm.
Rhizomes

long- creeping.

Culms

erect, 2–5 mm diam.

nearly terete.
Cataphylls

several.

2–4.
Leaves

blade absent.

basal, 1–4;

sheaths loose;

auricles absent or rounded, 0.5 mm;

blade imperfectly septate, ascending, nearly terete, 2–7 cm × 0.5–1.5 mm.
Inflorescences

lateral, many flowered, loose;

primary bract barely exceeding to many times longer than inflorescence.

heads, 1–2(–4)-flowered;

primary bracts much longer than inflorescence.
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 brown to blackish, oblong, 2.5–4 mm, apex obtuse;

outer and inner series nearly equal;

stamens 6, filaments 1–1.5 mm, anthers 0.5–0.7 mm;

style deciduous, 0.3–0.4 mm.
Capsules

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

pale with dark purplish valve margins, pseudo-3-locular, oblate to narrowly ovoid, 4–5.5 × 1.7–2.3 mm, exceeding perianth, apex retuse.
Seeds

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

yellowish tan, fusiform-ovoid, 0.7–0.9 mm, short tailed.
2n

= 120.

Juncus textilis

Juncus biglumis
Phenology Flowering and fruiting summer. Flowering and fruiting summer.
Habitat Moist or wet exposed areas Wet tundra and mossy margins of ponds and streams, wet gravel and open, rocky slopes in alpine zones
Elevation 100–1800 m (300–5900 ft) 10–3400 m (0–11200 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
AK; CO; MT; WY; AB; BC; LB; MB; NT; NU; ON; QC; YT; Greenland; n Europe; Asia
[BONAP county map]
Source FNA vol. 22. FNA vol. 22.
Parent taxa Juncaceae > Juncus > subg. Genuini Juncaceae > Juncus > subg. Alpini
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. 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. lesueurii var. elatus
Name authority Buchenau: Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen 17: 336. (1903) Linnaeus: Sp. Pl. 1: 328. (1753)
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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