Researchers found that the addition of salmon carcasses led to larger leaves, particularly in yarrow and common red paintbrush, and a greater seed set in yarrow in the third year. Disclaimer ...

Only 10-15 centimetres high, Haemanthus pumilio is one of the smallest paintbrush lilies. The plants usually flower during March and April, before the leaves develop. This species prefers to ...

Golden paintbrush (Castilleja levisecta) photo by Robert Pos, USFWS. Image is available for media use. The Center for Biological Diversity is a national, nonprofit conservation organization with more ...