showing characteristics of age, especially having grey or white hair

ancient

covered with fine whitish hairs or down

tall European annual with downy grey-green foliage and dense heads of small white flowers followed by hairy pods; naturalized in North America; sometimes a troublesome weed

tall European annual with downy grey-green foliage and dense heads of small white flowers followed by hairy pods; naturalized in North America; sometimes a troublesome weed

western American shrubs having white felted foliage and yellow flowers that become red-purple

large North American mountain marmot

a plant of the genus Tephrosia having pinnate leaves and white or purplish flowers and flat hairy pods

North American annual or biennial with long soft hairs on the leaves

widely distributed Old World perennial naturalized in North America having finely hairy leaves and inconspicuous white fragrant flowers

perennial North American plant with greyish hairy foliage yielding a red or yellow pigment

North American shrub with whitish canescent leaves