Triglochin palustris

Marsh arrow-grass

Family: Juncaginaceae · Type: perennial · Native

Conservation status: CNPS 2B.3

Marsh arrow-grass is a native perennial herb found in central Sierra Nevada Mountains in wet meadows, stream margins, and lake edges at elevations of 2,100 to 3,450 meters. Flowering from July to August, this plant produces small, inconspicuous greenish-white flowers in aerial racemes rising above its grass-like leaves. Growing in dense tufts with ascending rhizomes, it forms compact clusters 10 to 30 centimeters tall with slender, elliptical leaves. Its leaves are narrow, measuring 0.5 to 2 millimeters wide, with a distinctive deep two-lobed tip and no visible ligule. The fruit consists of three mericarps 5 to 7 millimeters long, which cling delicately to the central fruit axis.

Habitat: Wet meadows, wet flats, stream and lake margins

Bloom period: Jul-Aug

Elevation: 2100-3450 m

Bioregions: c&amps SNH

California counties: Tulare, Inyo, Mono, Fresno, Tuolumne

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.