Constituents of Castilleja rhexifolia, Mahonia repens and Oncidium cebolleta, The
A total of 54 species of plants from 21 different plant families were collected throughout the subalpine region of the Colorado Rocky Mountains. These plants were tested for antitumor activity, alkaloid content and grasshopper antifeedant activity. Although none of the plants showed significant antitumor activity, 13 showed the presence of alkaloids and eight showed activity in the grasshopper antifeedant screen. One of the plants that showed the presence of alkaloids was Castilleja rhexifolia Rydb. Investigation of C. rhexifolia extracts led to the isolation of senecionine, a previously reported ...
(For more, see "View full record.")