One lion hearted dandelion holding fast its feathery wigDandelion comes from the 15th century french dent de lion or lion's tooth because of the shape of its leaves but call it by any of these if you'd like: arnica, blow weed, butterflower, butterweed, carrot plant, china lettuce, coffee cup, dandy, down-head, fluff-weed, fortune-teller, grandaddy's whiskers, gray-haired grandmother, hawkbit, Irish daisy, little captain, one o'clock, puffball, puffweed, wine blossom, wine weed, yard flower.
source: Dictionary of American Regional English
This down-head was spied at the Minnesota Landscape Arboretum.