During the fall, lots of beautiful yellow flowers are in bloom, one of them is goldenrod. There are numerous species of goldenrod. The one here is pinebarren goldenrod (Solidago fistulosa). A perennial herb, they can grow to 2 meters tall. This member of the Aster family has a flowering "head" that is actually composed of numerous tiny disc and ray flowers arranged in spikes on slender upper branches. This is an excellent butterfly attractor, and bees love it too (if you like bees that is!).