Lysimachia thyrsiflora

Tufted loosestrife

Family: Myrsinaceae · Type: perennial · Native

Conservation status: CNPS 2B.3

Tufted loosestrife is a California native perennial with a rare (CNPS 2B.3) distribution found in the Klamath Ranges, northern California Ranges, northern Sierra Nevada Foothills, and northern Sierra Nevada at elevations of 800 to 1,300 meters in wet habitats. Flowering from June to August, this plant produces yellow flowers in tight racemes nestled in leaf axils, with linear petals 3 to 5 millimeters long. Growing with erect, unbranched stems 30 to 80 centimeters tall that are glabrous or slightly hairy near the top, it forms distinctive clusters of blossoms. Its leaves are opposite or whorled, lanceolate or elliptic, measuring 5 to 12 centimeters long, with smaller leaves often falling early in the season. The fruit develops as a 5 to 6-valved capsule that is roughly ovoid and larger than the flower's calyx.

Habitat: Wet places

Bloom period: Jun-Aug

Elevation: 800-1300 m

Bioregions: KR, CaR, n SNF (Calaveras Co.), n SNH (Plumas Co.), MP

California counties: Shasta, Plumas

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