|Lomatium macrocarpum near the Columbia River in East Wenatchee, Douglas County Washington|
Lomatium macrocarpum is a perennial flowering plant in the carrot family known by the common names bigseed lomatium, biscuit root or even 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 inflorescence 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.
- Calflora Database: Lomatium macrocarpum (Bigseed biscuitroot, Large fruited lomatium)
- Jepson Manual eFlora treatment of Lomatium macrocarpum
- USDA Plants Profile for Lomatium macrocarpum (bigseed biscuitroot)
- UC Cal Photos gallery of Lomatium macrocarpum
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