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falcate rush, sickle-leaf rush

sea rush, seaside rush

Habit Herbs, perennial, rhizomatous, 0.5–3 dm. Herbs, perennial, 5–10 dm.
Rhizomes

thick.

Culms

erect, slightly compressed.

closely set along rhizomes, 2–3.5 mm diam.

Cataphylls

3–5.

Leaves

basal 2–4, cauline 1–3;

auricles absent or rudimentary;

blade flat, 4–15 cm × 1.5–3 mm.

basal, 2–4;

auricles absent;

blade terete, 40–60 cm × 1–2 mm.

Inflorescences

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

primary bract usually exceeding inflorescence.

glomerules, to 100, each with 2–4 flowers, congested to open, 5–19 × 2–5 cm;

primary bracts somewhat inflated, usually surpassing inflorescence.

Flowers

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

inner series slightly shorter.

tepals straw-colored;

outer series 2.8–2.9 mm, apex acute;

inner series elliptic, 2.3–2.5 mm, apex obtuse;

stamens 6, 1.4–1.9 mm, anthers 2 times length of filaments;

style 1–1.2 mm.

Capsules

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

straw-colored, 3-locular, ovoid to ellipsoid, 2.5–3.5 × 1.2– × 1.5 mm, nearly equal to slightly exceeding perianth.

Seeds

ovoid to pyriform, 0.7 mm, not tailed.

brown, ellipsoid, body 0.6–0.7 mm, tails 0.5–1.2 mm.

2n

= 40, 48.

Juncus falcatus

Juncus maritimus

Phenology Flowering and fruiting summer.
Habitat Coastal salt marshes, saline meadows, and sand dunes
Distribution
from FNA
AK; CA; OR; WA; BC; Pacific Islands
[WildflowerSearch map]
[BONAP county map]
from FNA
NY; Europe; Asia; Africa [Introduced in North America]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

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

It is believed that this species has not been collected in North America since the late 1800s, when it was known to occur on Long Island, New York.

(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. FNA vol. 22.
Parent taxa Juncaceae > Juncus > subg. Graminifolii Juncaceae > Juncus > subg. Juncus
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. hemiendytus, J. howellii, J. inflexus, J. interior, J. kelloggii, J. leiospermus, J. lesueurii, J. longistylis, J. luciensis, J. macrandrus, J. macrophyllus, J. marginatus, 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) Lamarck: in J. Lamarck et al., Encycl. 3: 264. (1789)
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