balsamroot

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of several western North American perennial herbs of the genus Balsamorhiza in the composite family, having radiate heads of yellow flowers. The large roots of some species were used as food by certain Native American peoples.

from The Century Dictionary.

• noun A name given in California to species of Balsamorrhiza, a genus of low, coarse, perennial composite plants, allied to the sunflower.

from the GNU version of the Collaborative International Dictionary of English.

• noun a plant of the genus Balsamorhiza having white-downy leaves in a basal rosette and yellow flowers and long balsam-scented taproots.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A perennial of the genus Balsamorhiza in the sunflower family, native to western North America.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a plant of the genus Balsamorhiza having downy leaves in a basal rosette and yellow flowers and long balsam-scented taproots