Previously on List 4.3. Does not occur in CA; known only from South America. Plants previously identified as P. myosotoides in CA are actually P. torreyi var. perplexans and P. verrucosus.
California Native Plant Society (CNPS).
Inventory of Rare and Endangered Plants (online edition, v8-01a).
California Native Plant Society. Sacramento, CA. Accessed on
.