Lomatium nudicaule

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USDA Hardiness zone: Zn5b -10º to -15ºF

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Lomatium nudicaule

Bare stem biscuit root is a locally native perennial that is found in rocky dry areas among clumping native grasses. The stemless rosette bears upright trifoliate glabrous blue leaves. 20″ stems rise up in late spring to earl summer with umbels of sulphur yellow flowers (sometimes purple). To establish, water thoroughly through the first month in the ground. Winter deciduous it emerges very early in spring. Loved by pollinators of all kinds. In the Willamette Valley this biscuit root grows in various biomes but is most common on dry hillsides. Festuca californica and Festuca roemeri are two native grasses seen with this plant in the wild. Full sun to light deciduous shade. Avoid standing water in winter. Long lived perennial once established. Excellent in gravel gardens.  Leaves remain handsome after blooming. Spreads slowly to form colonies. Locally native in the Portland city limits. Drought adapted when established. Moderate deer resistance. Resents disturbance once established. Widespread in the west. Important pollinator plant. Common associates in the wild are Potentilla gracilis ssp. gracilis Slender Cinquefoil, and Sidalcea m. virgata Pictured below. Oregon native plant. 

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