the pink dahlia pinnata cav. flower

inflorescence herbaceous asteraceae wildflower perennial pinnately flowering elongated september branched peduncle drooping december fruiting pinnata upright grayish flowers achenes october blossom dahlia flower family robust leaves oblong tongue shaped purple period yellow orchid nature plant genus multi lobed lobes ovate green color large white black petal tulip shrub daisy pink stem head long june flat lily rose cav red