Erythranthe grandis

Magnificent seep monkeyflower

Family: Phrymaceae · Type: perennial · Native

Magnificent seep monkeyflower is a California native perennial found along coastal regions in beaches, dunes, coastal bluffs, seeps, and creeks at elevations from sea level to 800 meters. Flowering from May to July, this plant produces bright yellow flowers in racemes with 8 to 26 blooms, each flower featuring a 14 to 24 millimeter tube and distinctive open form. Growing 50 to 120 centimeters tall with a rhizomatous root system, it features densely glandular stems that become increasingly hairy toward the upper parts of the plant. Its leaves are notably distinctive, with broad ovate to round blades 25 to 60 millimeters long, featuring crenate edges and a truncate to slightly heart-shaped base, with leaf size abruptly reducing toward the stem's upper sections. The fruit develops 8 to 12 millimeters long, with a calyx 15 to 22 millimeters in length that becomes asymmetrically swollen as it matures.

Habitat: Beaches, dunes, coastal bluffs, seeps, creeks

Bloom period: May-Jul

Elevation: 0-800 m

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