Taraxacum officinale, the common dandelion (often simply called "dandelion"), is a flowering herbaceous perennial plant of the family Asteraceae (Compositae).. It can be found growing in temperate regions of the world, in lawns, on roadsides, on disturbed banks and shores of water ways, and other areas with moist soils.
Taraxacum californicum, also known as the California dandelion, is an endangered species of dandelion endemic to the San Bernardino Mountains of California. It grows in mountain meadows. Taraxacum californicum is a small perennial wildflower which resembles its close relative, the widespread weed known as the common dandelion (T. officinale).
Red-seeded Dandelion typically has smaller flowers, rarely over 1 inch across and more consistently deeply lobed leaves, the lobes more triangular to lance-like than Common Dandelion, with tips strongly curved back towards the base, as well as the lobes at the tip being approximately the same size as those along its length.