Burke: Eleocharis bolanderi vs. Eleocharis quinqueflora

	Eleocharis bolanderi	Eleocharis quinqueflora
	Bolander's spikerush	few-flowered spike-rush
Habit		Herbaceous perennial from short, stout rhizomes; also with elongate, slender stolons with a terminal bud; culms 1-3 dm. tall, under 1 mm. thick.
Leaves		Leaves all basal and reduced to sheaths.
Flowers		Spikelet terminal and solitary, 4-8 mm. long, 3- to 9-flowered; scales spirally arranged, 2.5-5.5 mm. long, the lower 2 larger than the others but subtending flowers; perianth bristles longer or shorter than the achene; stamens 3; stigma trifid, thickened at the base.
Fruits		Achenes broadest above the middle, 1.9-2.6 mm. long including the short stylar beak which is continuous with the body of the 3-ribbed, triangular or plano-convex achene.

	Eleocharis bolanderi	Eleocharis quinqueflora
Flowering time		June-August
Habitat		Bogs and other wet places, from the lowlands to high elevations in the mountains.
Distribution	[WildflowerSearch map] [BONAP county map]	Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across the northern U.S. and Canada to northeastern North America; circumboreal. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	E. acicularis, E. bella, E. coloradoensis, E. engelmannii, E. erythropoda, E. geniculata, E. macrostachya, E. mamillata, E. obtusa, E. ovata, E. palustris, E. parvula, E. quinqueflora, E. rostellata, E. suksdorfiana, E. uniglumis	E. acicularis, E. bella, E. bolanderi, E. coloradoensis, E. engelmannii, E. erythropoda, E. geniculata, E. macrostachya, E. mamillata, E. obtusa, E. ovata, E. palustris, E. parvula, E. rostellata, E. suksdorfiana, E. uniglumis
Web links	Local floras: 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	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

Eleocharis bolanderi

Eleocharis quinqueflora

Bolander's spikerush

few-flowered spike-rush

Habit

Herbaceous perennial from short, stout rhizomes; also with elongate, slender stolons with a terminal bud; culms 1-3 dm. tall, under 1 mm. thick.

Leaves

Leaves all basal and reduced to sheaths.

Flowers

Spikelet terminal and solitary, 4-8 mm. long, 3- to 9-flowered;

scales spirally arranged, 2.5-5.5 mm. long, the lower 2 larger than the others but subtending flowers;

perianth bristles longer or shorter than the achene;

stamens 3;

stigma trifid, thickened at the base.

Fruits

Achenes broadest above the middle, 1.9-2.6 mm. long including the short stylar beak which is continuous with the body of the 3-ribbed, triangular or plano-convex achene.

Eleocharis bolanderi

Eleocharis quinqueflora

Flowering time

June-August

Habitat

Bogs and other wet places, from the lowlands to high elevations in the mountains.

Distribution

[WildflowerSearch map]

[BONAP county map]

Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across the northern U.S. and Canada to northeastern North America; circumboreal.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Conservation status

Not of concern

Sibling taxa