Hemizonia congesta
DC.
ssp. lutescens
(Greene) Babc. & H. M. Hall
Hayfield tarweed
Hemizonia congesta ssp. lutescens is an annual herb that is native to California.
Bloom Period
The blue points on the map indicate observations in Calflora.
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Northern Coastal Scrub, Valley Grassland
[flowersofmarin.com] Odor, Stickiness: A pungent odor wafts across the flower-filled summer meadow. The smell is coming from the abundant yellow daisy-like flowers that are scattered everywhere. This is hayfield tarweed, or Hemizonia congesta. They look pretty, with three-lobed ray flowers encircling a soft yellow center. But if you pick one up you will get a sticky souvenir - this plant is incredibly resinous, and the smell and the stickiness will follow you until you can scrub off. Low-slung dogs will come back from hikes needing a bath, and the fragrance (strong but not unpleasant) lingers on fur and clothes. (link added by Mary Ann Machi)
