This section is from the book "Field Book Of Western Wild Flowers", by Margaret Armstrong. Also available from Amazon: Field Book Of Western Wild Flowers.
A handsome plant, which is noticeable on account of its unusual coloring. The stout, smooth stem is two or three feet tall, with smooth, slightly thickish leaves, the margins rolled back, a very peculiar shade of light bright yellowish-green. The handsome flowers are an inch and three-eighths across, with bright deep yellow centers and white rays shading to mauve at the tips, and form a large flat-topped cluster. This is a native of Africa and is not yet common in this country, but grows on the sand dunes near San Francisco.
There are many kinds of Baccharis, all American, chiefly shrubs.
 
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