Flora Pittsburghensis.

Dandelion (Taraxacum officinale).

Family Compositae or Asteraceae (Composite Family).

No one needs to be introduced to the common Dandelion, but its flower heads are wonderfully intricate when examined closely. Dandelions can bloom almost any time of the year; they prefer the cool weather of spring, but will bloom sporadically through the summer, with another burst of enthusiasm in the fall, and occasional appearances even in the winter if we have a warm spell. No matter how much suburbanites hate dandelions in their lawns, anyone with any aesthetic sense must grudgingly admit that the common dandelion is one of our most perfectly beautiful flowers.