Flora of North America species comparison

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Juncus falcatus

Juncus hemiendytus

falcate rush, sickle-leaf rush

blood rush, dwarf rush, Herman's dwarf rush, Hermann's dwarf rush, juncus hemiendytus
Habit Herbs, perennial, rhizomatous, 0.5–3 dm. Herbs, annual, cespitose, 0.03–0.36 dm.
Culms

erect, slightly compressed.

to 5.
Leaves

basal 2–4, cauline 1–3;

auricles absent or rudimentary;

blade flat, 4–15 cm × 1.5–3 mm.

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

glomerules, (1–)2–5, each with 2–15 flowers, open or aggregate;

primary bract usually exceeding inflorescence.

solitary flowers.
Flowers

tepals brown, ovate-lanceolate, 4.5–6 mm, margins scarious, minutely papillate;

inner series slightly shorter.

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

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

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

ovoid to pyriform, 0.7 mm, not tailed.

ovoid to oblate, 0.3–0.55 mm.

Juncus falcatus

Juncus hemiendytus
Distribution
from FNA
AK; CA; OR; WA; BC; Pacific Islands
[WildflowerSearch map]
[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.)

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Filaments much shorter than anthers
var. falcatus
1. Filaments ca. as long as anthers
var. sitchensis
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 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. 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
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. falcatus var. falcatus, J. falcatus var. sitchensis
J. hemiendytus var. abjectus, J. hemiendytus var. hemiendytus
Synonyms J. brachystylus, J. brachystylus var. uniflorus, J. triformis var. uniflorus
Name authority E. Meyer: Syn. Luzul. 34. (1823) 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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