Definition of "umbelliferous" [um•bel•lif•er•ous]

• Bearing umbels. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Parsley is a member of the umbelliferous vegetable family, which contains powerful anticancer compounds."
• "The OED calls it "A gum-resin mentioned by Roman writers; obtained from an umbelliferous plant called lāserpīcium or silphium"; the OLD entry is again omitting citations:"
• "The undergrowth is simply hideous, consisting mainly of coarse reedy grass, monstrous docks, the large-leaved Polygonum cuspidatum, several umbelliferous plants, and a “ragweed” which, like most of its gawky fellows, grows from five to six feet high."