Burke: Isolepis cernua vs. Isolepis pseudosetacea

	Isolepis cernua	Isolepis pseudosetacea
	low clubrush, low lateral clubrush
Habit	Tufted annual with numerous slender stems 3-20 cm. tall.
Leaves	Leaves few, near the base, variable, sometimes with normal sheath and elongate, slender blade, sometimes the lower leaves reduced to bracts and the upper one with a sheath and very short blade.
Flowers	Inflorescence a solitary spikelet 2-5.5 mm. long with several perfect flowers, sub-terminal, at an angle to the culm, with a single involucral bract up to 1 cm. long; flowers subtended by scales 1.5-2 mm. long, often purplish, with parallel nerves, the mid-rib greenish or pale; perianth bristles none; stamens 3; style trifid.
Fruits	Achenes triangular, about 1 mm. long.

	Isolepis cernua	Isolepis pseudosetacea
Flowering time	June-August
Habitat	Fresh or brackish marshes, and beaches, shores, and clis near coast.
Distribution	Occurring west of the Cascades crest in and near coastal marine waters; Alaska to northern Mexico; irregularly cosmopolitan. [WildflowerSearch map] [BONAP county map]	[BONAP county map]
Origin	Native
Conservation status	Not of concern
Sibling taxa	I. setacea	I. cernua, I. setacea
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	Local floras: BC 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

Isolepis cernua

Isolepis pseudosetacea

low clubrush, low lateral clubrush

Habit

Tufted annual with numerous slender stems 3-20 cm. tall.

Leaves

Leaves few, near the base, variable, sometimes with normal sheath and elongate, slender blade, sometimes the lower leaves reduced to bracts and the upper one with a sheath and very short blade.

Flowers

Inflorescence a solitary spikelet 2-5.5 mm. long with several perfect flowers, sub-terminal, at an angle to the culm, with a single involucral bract up to 1 cm. long;

flowers subtended by scales 1.5-2 mm. long, often purplish, with parallel nerves, the mid-rib greenish or pale;

perianth bristles none;

stamens 3;

style trifid.

Fruits

Achenes triangular, about 1 mm. long.