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blood rush, dwarf rush, Herman's dwarf rush, Hermann's dwarf rush, juncus hemiendytus

Parry rush, Parry's rush

Habit Herbs, annual, cespitose, 0.03–0.36 dm. Herbs, perennial, strongly tufted, 0.5–3 dm.
Rhizomes

densely short-branched.

Culms

to 5.

terete.

Cataphylls

several.

Leaves

to 1.8 cm, 1/2–1 1/3 height of plant.

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

Inflorescences

solitary flowers.

1–3-flowered, open;

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

Flowers

2-merous;

: tepals 4(–6), erect to recurved at maturity, reddish, 1.5–3 × 0.5–1.2 mm;

outer and outer series nearly equal, apex rounded to acute;

stamens 2(–3), filaments 0.5–1.4 mm, anthers 0.3–0.7 mm;

style 0.1–0.4 mm, stigma 2(–3), 0.3–1 mm.

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.

Capsules

reddish, 2–- or 3-locular, obovoid to ellipsoid or oblate, 1.9–3.5 × 1–2 mm.

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

Seeds

ovoid to oblate, 0.3–0.55 mm.

amber, body 0.6 mm, tails 0.4 mm.

Juncus hemiendytus

Juncus parryi

Phenology Flowering and fruiting summer.
Habitat Exposed rocky slopes and stream banks in montane and alpine areas, conifer forests
Elevation 1500–4000 m (4900–13100 ft)
Distribution
from USDA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; CO; ID; MT; NV; OR; UT; WA; WY; AB; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

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

Key
1. Bracts proximal to inflorescence, 1–2
var. hemiendytus
1. Bracts proximal to inflorescence absent
var. abjectus
Source FNA vol. 22, p. 232. FNA vol. 22.
Parent taxa Juncaceae > Juncus > subg. Graminifolii 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. 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. 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. 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. hemiendytus var. abjectus, J. hemiendytus var. hemiendytus
Synonyms J. brachystylus, J. brachystylus var. uniflorus, J. triformis var. uniflorus J. drummondii var. parryi
Name authority F. J. Hermann: Leaflets of Western Botany 5: 118. (1948) Engelmann
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