Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Lomatium macrocarpum is a species of flowering plant in the carrot family known by the common name bigseed biscuitroot. It is native to much of western North America, where it can be found in various types of habitat, including the grasslands of the Great Plains. It is spreading or erect perennial herb growing up to about half a meter long with hairy, gray-green herbage. The leaves are up to about 24 centimeters long and are intricately divided into many small, narrow segments. The flower cluster bears an umbel of yellowish, purplish, or white flowers. The fruit is a compressed, winged, round or oval disc up to about 2 centimeters long.

Plant type

Perennial herb

Size

6 - 19 in Tall

Form

Spreading

Growth rate

Moderate

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Color

White, Yellow, Purple

Flowering season

Spring

Sun

Full Sun, Partial Shade

Ease of care

Moderate

Soil description

Prefers sandy or loamy soils. Does not grow well in clay soils.

Site type

Rocky slopes, woodlands

Plant communities

Northern Oak Woodland, Red Fir Forest, Sagebrush Scrub, Yellow Pine Forest

Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 4 likely

Confirmed Likely

Agonopterix oregonensis

Black Swallowtail

Papilio polyxenes

Anise Swallowtail

Papilio zelicaon