OregonFlora: Juncus anthelatus

	Juncus anthelatus
	Kentucky rush, poverty rush
Habit	Plants perennial, (30)60–90 cm tall, usually coarse, cespitose, base usually green to brown, stems with 2–6 strong longitudinal ridges visible on one side.
Leaves	thin and wiry; blade flat and slightly inrolled; auricles soft and thin, 1.3–4 mm (longest auricles on early season shoots; those produced late in season are usually short), scarious or dirty white to translucent dull; acute or acuminate (those on late season shoots often blunt).
Inflorescences	large, cymose, 6–21 cm, often reddish; bractlets subtending flowers usually acute; flowers solitary at the nodes; internodes longer than flowers.
Flowers	tepals 6, green to light brown or reddish; tepal tips acuminate; erect; stamens 3; filaments 0.8–1.1 mm; anthers usually 0.6–0.8(1) mm; styles 0.2–0.4 mm.
Capsules	2–3 mm, usually less than 75% of the length of the tepals, light brown to red; apex rounded to acute, not crested, 1-chambered.
Seeds	0.3–0.6 × 0.2–0.25 mm, apiculate.
2n	=80.

	Juncus anthelatus
Distribution	[WildflowerSearch map] [BONAP county map]
Discussion	Shores, wet prairie remnants, seasonally wet ground, ditches. 100–500 m. WV. CA, WA; south to Mexico; central and eastern North America; New Zealand. Exotic. Juncus anthelatus is a rare introduction, often with a much larger inflorescence than J. tenuis.
Source	Flora of Oregon, volume 1, page 271 Peter Zika
Sibling taxa	J. acuminatus, J. articulatus, J. balticus, J. bolanderi, J. brevicaudatus, J. breweri, J. bryoides, J. bufonius, J. bulbosus, J. canadensis, J. capillaris, J. capitatus, J. compressus, J. confusus, J. conglomeratus, J. covillei, J. diffusissimus, J. drummondii, J. dudleyi, J. effusus, J. ensifolius, J. ensifolius x Juncus nevadensis, J. exiguus, J. falcatus, J. filiformis, J. gerardi, J. hemiendytus, J. hesperius, J. howellii, J. inflexus, J. interior, J. kelloggii, J. laccatus, J. lescurii, J. longistylis, J. marginatus, J. mertensianus, J. mexicanus, J. nevadensis, J. occidentalis, J. orthophyllus, J. oxymeris, J. parryi, J. patens, J. pelocarpus, J. planifolius, J. ranarius, J. regelii, J. saximontanus, J. supiniformis, J. tenuis, J. tiehmii, J. torreyi, J. triglumis, J. trilocularis, J. uncialis
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Juncus anthelatus

Kentucky rush, poverty rush

Habit

Plants perennial, (30)60–90 cm tall, usually coarse, cespitose, base usually green to brown, stems with 2–6 strong longitudinal ridges visible on one side.

Leaves

thin and wiry;

blade flat and slightly inrolled;

auricles soft and thin, 1.3–4 mm (longest auricles on early season shoots; those produced late in season are usually short), scarious or dirty white to translucent dull; acute or acuminate (those on late season shoots often blunt).

Inflorescences

large, cymose, 6–21 cm, often reddish;

bractlets subtending flowers usually acute;

flowers solitary at the nodes;

internodes longer than flowers.

Flowers

tepals 6, green to light brown or reddish;

tepal tips acuminate; erect;

stamens 3;

filaments 0.8–1.1 mm;

anthers usually 0.6–0.8(1) mm;

styles 0.2–0.4 mm.

Capsules

2–3 mm, usually less than 75% of the length of the tepals, light brown to red;

apex rounded to acute, not crested, 1-chambered.

Seeds

0.3–0.6 × 0.2–0.25 mm, apiculate.

=80.

Juncus anthelatus

Distribution

[WildflowerSearch map]

[BONAP county map]

Discussion

Shores, wet prairie remnants, seasonally wet ground, ditches. 100–500 m. WV. CA, WA; south to Mexico; central and eastern North America; New Zealand. Exotic.

Juncus anthelatus is a rare introduction, often with a much larger inflorescence than J. tenuis.

Source

Flora of Oregon, volume 1, page 271
Peter Zika

Sibling taxa

J. acuminatus, J. articulatus, J. balticus, J. bolanderi, J. brevicaudatus, J. breweri, J. bryoides, J. bufonius, J. bulbosus, J. canadensis, J. capillaris, J. capitatus, J. compressus, J. confusus, J. conglomeratus, J. covillei, J. diffusissimus, J. drummondii, J. dudleyi, J. effusus, J. ensifolius, J. ensifolius x Juncus nevadensis, J. exiguus, J. falcatus, J. filiformis, J. gerardi, J. hemiendytus, J. hesperius, J. howellii, J. inflexus, J. interior, J. kelloggii, J. laccatus, J. lescurii, J. longistylis, J. marginatus, J. mertensianus, J. mexicanus, J. nevadensis, J. occidentalis, J. orthophyllus, J. oxymeris, J. parryi, J. patens, J. pelocarpus, J. planifolius, J. ranarius, J. regelii, J. saximontanus, J. supiniformis, J. tenuis, J. tiehmii, J. torreyi, J. triglumis, J. trilocularis, J. uncialis

Web links

Local floras: BC, CA, OR, WA
Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria
WildflowerSearch
iNaturalist (observations)
USDA Plants Database
LBJ Wildflower Center
SEINet
Plants of the World Online
Encyclopedia of Life
Wikipedia
Google Image Search

Unless otherwise noted, all data comes from OregonFlora.

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

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Juncus anthelatus

Juncus anthelatus