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Bigseed Biscuitroot

Lomatium macrocarpum (Hook. & Arn.) Coult. & Rose

Brief Summary

provided by EOL authors
Lomatium macrocarpum has a bioregional distribution that covers much of the western USA and western Canada. Specifically the range extends from California north to British Columbia and eastward to south-central Canada, North Dakota and Utah. Habitats include rocky, and often serpentine, slopes in chaparral; elevations of occurrence from 150 to 3000 meters above sea level.

Known by the common name Bigseed biscuitroot, this herb exhibits a taproot, and often a tuber base. The herbage is gray, generally tomentose to densely short-hairy, with a very abbreviated stem. The leaf petiole is 1.5 to 7.0 centimeters in length, with blades 2.5 to 15 cm long; blade shape is oblong to obovate. The leaves are pinnately or ternate-pinnately dissected. Flower corolla may be variously white, pale yellow, or purplish.
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