Flora of North America species comparison

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Juncus hemiendytus var. hemiendytus

Juncus hemiendytus
Photo is of parent taxon

dwarf rush, Herman's dwarf rush, Hermann's dwarf rush, vernal pool rush

blood rush, dwarf rush, Herman's dwarf rush, Hermann's dwarf rush, juncus hemiendytus
Habit Herbs, annual, cespitose, 0.03–0.36 dm.
Culms

not dilated directly proximal to flower, 0.1–0.3 mm diam.

to 5.
Leaves

to 1.8 cm, 1/2–1 1/3 height of plant.
Inflorescences

bracts subtending inflorescence 1–2, rounded to obtusely ovate, 1–2 mm.

solitary flowers.
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.
Capsules

usually longer than tepals.

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

ovoid to oblate, 0.3–0.55 mm.
n

= 16.

Juncus hemiendytus var. hemiendytus

Juncus hemiendytus
Phenology Flowering and fruiting spring–early fall.
Habitat Various damp open habitats including vernal depressions, streambeds, swales in sagebrush flats, forest clearing and alpine meadows
Elevation 400–3200 m (1300–10500 ft)
Distribution
from FNA
CA; ID; NV; OR; UT; WA
[BONAP county map]
from USDA
[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. FNA vol. 22, p. 232.
Parent taxa Juncaceae > Juncus > subg. Graminifolii > Juncus hemiendytus Juncaceae > Juncus > subg. Graminifolii
Sibling taxa
J. hemiendytus var. abjectus
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
Subordinate taxa
J. hemiendytus var. abjectus, J. hemiendytus var. hemiendytus
Synonyms J. brachystylus var. uniflorus, J. triformis var. uniflorus J. brachystylus, J. brachystylus var. uniflorus, J. triformis var. uniflorus
Name authority unknown F. J. Hermann: Leaflets of Western Botany 5: 118. (1948)
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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