Harbouria trachypleura (Whiskbroom Parsley) is a species of perennial herb in the family umbellifers. They have a self-supporting growth form. They are native to The Contiguous United States and Western North America. They have broad leaves. Flowers are visited by Silvery Blue, Edwards' Fritillary, Parnassius smintheus smintheus, and Persius Duskywing. Individuals can grow to 55 cm.
EOL has data for 17 attributes, including: