black cat curiosity Dandelion garden white blow bush nature plant ball colorful fluffy green seedhead soft spring wild flower isolated leaf Nyberg seed seeds stalk stem birth blue multiplication reproduction sky countryside field fields flowers weed weeds pental summer Taraxacum achenes clock common dandelion clock dispersal head parachute ball pattern puff puff ball puffs round sphere spherical spread spreading Taraxacum officinale texture widespread wind-aided wind-blown wind-spread wishie