• tall North American perennial with creeping rootstocks and narrow leaves and spikes of pinkish-purple flowers occurring in great abundance in burned-over areas or recent clearings; an important honey plant
• an American weedy plant with small white or greenish flowers
• United States journalist who reported on the October Revolution from Petrograd in 1917; founded the Communist Labor Party in America in 1919; is buried in the Kremlin in Moscow (1887-1920)
• tall woody perennial grasses with hollow slender stems especially of the genera Arundo and Phragmites
• a vibrator consisting of a thin strip of stiff material that vibrates to produce a tone when air streams over it
• United States physician who proved that yellow fever is transmitted by mosquitoes (1851-1902)
• a musical instrument that sounds by means of a vibrating reed
• an American everlasting having foliage with soft wooly hairs and corymbose heads with pearly white bracts
• any of various plants of the genus Froelichia found in sandy soils and on rocky slopes in warmer regions of America; grown for their spikes of woolly white flowers
• (genetics) an organism that is the offspring of genetically dissimilar parents or stock; especially offspring produced by breeding plants or animals of different varieties or breeds or species
verb
• breed animals or plants using parents of different races and varieties
• any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock
• any of various plants of the genus Vernonia of tropical and warm regions of especially North America that take their name from their loose heads of purple to rose flowers that quickly take on a rusty hue
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