Flora of North America species comparison

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Juncus parryi

Juncus howellii

Parry rush, Parry's rush

Howell's rush
Habit Herbs, perennial, strongly tufted, 0.5–3 dm. Herbs, perennial, 2–6 dm.
Rhizomes

densely short-branched.

long creeping.
Culms

terete.

erect, slightly compressed, never rooting at nodes.
Cataphylls

several.

Leaves

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

basal 2–4, cauline 2–3;

auricles 1–3 mm, apex rounded to acutish, membranous;

blade flat, 10–30 cdm × 2–4 mm, reduced distally, margins occasionally papillose.
Inflorescences

1–3-flowered, open;

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

glomerules, usually 3–9, each with 3–8(–10) flowers, open, 2–9 cm;

primary bract much shorter than inflorescence.
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.

tepals yellow-brown with green midstripe, lanceolate, 5–6.5 mm, margins clear;

outer and inner series nearly equal, adaxially papillose;

stamens 6, filaments 0.5–1 mm, anthers 1.8–2.6 mm;

style 0.6 mm.
Capsules

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

tan, 3-locular, obovoid, 3–5 mm, shorter than perianth.
Seeds

amber, body 0.6 mm, tails 0.4 mm.

ovoid, body 0.5–0.7 mm, tails 0.2–0.4 mm.

Juncus parryi

Juncus howellii
Phenology Flowering and fruiting summer. Flowering and fruiting summer.
Habitat Exposed rocky slopes and stream banks in montane and alpine areas, conifer forests Moist ground in mountain meadows
Elevation 1500–4000 m (4900–13100 ft) 850–2500 m (2800–8200 ft)
Distribution
from FNA
CA; CO; ID; MT; NV; OR; UT; WA; WY; AB; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; ID; OR; WA
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 22. FNA vol. 22.
Parent taxa Juncaceae > Juncus > subg. Genuini Juncaceae > Juncus > subg. Graminifolii
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. 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. 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
Name authority Engelmann F. J. Hermann: Leaflets of Western Botany 5: 182. (1949)
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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