Burke: Juncus acutus vs. Juncus drummondii

	Juncus acutus	Juncus drummondii
		Drummond's rush, threeflower rush
Habit		Densely tufted perennials, forming small mats, the numerous flowering stems terete, 15-35 cm. tall.
Leaves		Leaves bladeless or with bristle-like blades 2-5 mm. long; leaf bases sheathing, the sheaths 2-6 cm. long.
Flowers		Flowers 1-3, closely spaced but discrete, each subtended by two brownish, membranous bracts, the involucral bract 1-2 cm. long, mostly terete, erect, sharp-pointed; perianth 5-7 mm. long, the 6 segments subequal, lanceolate, pointed, green with broad, membranous, brown margins; stamens 6.
Fruits		Capsule slightly exceeding the perianth, blunt, with a very shallow notch on each valve.

	Juncus acutus	Juncus drummondii
Flowering time		June-September
Habitat		Alpine to subalpine meadows, streambanks, talus slopes and ridges.
Distribution	[WildflowerSearch map] [BONAP county map]	Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains. [WildflowerSearch map] [BONAP county map]
Origin		Native
Conservation status		Not of concern
Sibling taxa	J. acuminatus, J. alpinoarticulatus, J. anthelatus, J. articulatus, J. balticus, J. bolanderi, J. brachycarpus, J. brevicaudatus, J. breweri, J. bufonius, J. bulbosus, J. canadensis, J. compressus, J. confusus, J. conglomeratus, J. covillei, J. diffusissimus, J. drummondii, J. dudleyi, J. effusus, J. ensifolius, J. falcatus, J. filiformis, J. gerardi, J. hemiendytus, J. hesperius, J. howellii, J. inflexus, J. interior, J. kelloggii, J. laccatus, J. longistylis, J. mertensianus, J. nevadensis, J. nodosus, J. occidentalis, J. orthophyllus, J. oxymeris, J. parryi, J. patens, J. pelocarpus, J. pylaei, J. regelii, J. saximontanus, J. supiniformis, J. tenuis, J. tiehmii, J. torreyi, J. trilocularis, J. uncialis, J. vaseyi	J. acuminatus, J. alpinoarticulatus, J. anthelatus, J. articulatus, J. balticus, J. bolanderi, J. brachycarpus, J. brevicaudatus, J. breweri, J. bufonius, J. bulbosus, J. canadensis, J. compressus, J. confusus, J. conglomeratus, J. covillei, J. diffusissimus, J. dudleyi, J. effusus, J. ensifolius, J. falcatus, J. filiformis, J. gerardi, J. hemiendytus, J. hesperius, J. howellii, J. inflexus, J. interior, J. kelloggii, J. laccatus, J. longistylis, J. mertensianus, J. nevadensis, J. nodosus, J. occidentalis, J. orthophyllus, J. oxymeris, J. parryi, J. patens, J. pelocarpus, J. pylaei, J. regelii, J. saximontanus, J. supiniformis, J. tenuis, J. tiehmii, J. torreyi, J. trilocularis, J. uncialis, J. vaseyi
Web links	Local Web sites: 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	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 acutus

Juncus drummondii

Drummond's rush, threeflower rush

Habit

Densely tufted perennials, forming small mats, the numerous flowering stems terete, 15-35 cm. tall.

Leaves

Leaves bladeless or with bristle-like blades 2-5 mm. long;

leaf bases sheathing, the sheaths 2-6 cm. long.

Flowers

Flowers 1-3, closely spaced but discrete, each subtended by two brownish, membranous bracts, the involucral bract 1-2 cm. long, mostly terete, erect, sharp-pointed;

perianth 5-7 mm. long, the 6 segments subequal, lanceolate, pointed, green with broad, membranous, brown margins;

stamens 6.

Fruits

Capsule slightly exceeding the perianth, blunt, with a very shallow notch on each valve.