Flora of North America species comparison

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Juncus falcatus

falcate rush, sickle-leaf rush
Habit Herbs, perennial, rhizomatous, 0.5–3 dm.
Culms

erect, slightly compressed.
Leaves

basal 2–4, cauline 1–3;

auricles absent or rudimentary;

blade flat, 4–15 cm × 1.5–3 mm.
Inflorescences

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

primary bract usually exceeding inflorescence.
Flowers

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

inner series slightly shorter.
Capsules

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

ovoid to pyriform, 0.7 mm, not tailed.

Juncus falcatus
Distribution
from FNA
AK; CA; OR; WA; BC; Pacific Islands
[WildflowerSearch map]
[BONAP county map]
Discussion

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
Source FNA vol. 22.
Parent taxa 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
Subordinate taxa
J. falcatus var. falcatus, J. falcatus var. sitchensis
Name authority E. Meyer: Syn. Luzul. 34. (1823)
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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