mule-fat

[myool-fat]

noun

a composite shrub, Baccharis viminea, of California, having willowlike leaves and clustered flowers, growing in riverbeds.

Origin of mule-fat

First recorded in 1930–35; so called from its being a source of food for mule deer

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018