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Parry rush, Parry's rush

bulbous rush, spreading rush

Habit Herbs, perennial, strongly tufted, 0.5–3 dm. Herbs, perennial, cespitose, often with basal bulblike swellings, occasionally appearing rhizomatous, 0.3–3 dm, to 10 dm when floating or submersed.
Rhizomes

densely short-branched.

Culms

terete.

erect or decumbent and rooting at nodes, or floating, terete, 1–2 mm diam., smooth.

Cataphylls

several.

1, straw-colored, apex acute.

Leaves

auricles 0.2–0.3 mm, apex acute to rounded, scarious.

basal 1, cauline 0–1;

auricles 0.4–1 mm, apex acute, scarious;

blade terete, occasionally filiform, flaccid, forming carpets, 2–10 cm × 0.8–1.4 mm.

Inflorescences

1–3-flowered, open;

primary bract terete, 2–4 cm, usually longer than inflorescence.

terminal racemes of 1–8(–30) heads, or single head, 2–10 cm, branches erect;

primary bract erect;

heads 2–6(–15)-flowered, obconic, 4.5–6.5 mm diam.

Flowers

pedicellate;

bracteoles broadly ovate;

tepals light brown with green midstripe, lanceolate, 5.5–9 mm, margins scarious;

inner series loosely subtending capsule at maturity, shorter;

stamens 6, filaments 0.7–1 mm, anthers 1.1–1.6 mm;

style 0.2 mm.

often forming bulbils;

tepals pale brown, ovate to lanceolate or inner oblong, 2–3.6 mm, nearly equal, apex acute to obtuse;

stamens 3 or 6, anthers 3/4 to equal filament length.

Capsules

tan, 3-locular, narrowly oblong, 6–9 × 1.5–2 mm, usually exceeding perianth.

equaling perianth or exserted (to 0.5 mm beyond tepals), chestnut brown, 1-locular, cylindric, 2.5–4 mm, apex obtuse proximal to beak, valves separating at dehiscence.

Seeds

amber, body 0.6 mm, tails 0.4 mm.

ellipsoid, 0.5–0.6 mm, not tailed;

body clear yellow-brown.

Juncus parryi

Juncus bulbosus

Phenology Flowering and fruiting summer. Fruiting mid summer–early fall.
Habitat Exposed rocky slopes and stream banks in montane and alpine areas, conifer forests Margins and siliceous or peaty shores of pools and streams, often floating
Elevation 1500–4000 m (4900–13100 ft) 0–200 m (0–700 ft)
Distribution
from FNA
CA; CO; ID; MT; NV; OR; UT; WA; WY; AB; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
OR; WA; BC; NF; NS; SPM; Europe; n Africa [Probably introduced in North America]
[BONAP county map]
Source FNA vol. 22. FNA vol. 22.
Parent taxa Juncaceae > Juncus > subg. Genuini Juncaceae > Juncus > subg. Septati
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. 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. 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. drummondii var. parryi J. kockii, J. supinus
Name authority Engelmann Linnaeus: Sp. Pl. 1: 327. (1753)
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