San Diego Natural History Museum--Your Nature Connection[BRCC San Diego Natural History Museum: Research Library]
Plants that Attract Butterflies, A Gallery of Paintings by Albert Valentien

Painting of Horkelia clevelandii, by Albert Valentien

Horkelia clevelandii (Cleveland's Horkelia)
Painted by Albert Valentien
© San Diego Natural History Museum

Horkelia clevelandii

Horkelia clevelandii or Cleveland's Horkelia is a perennial plant whose populations are declining in San Diego County. Restricted to montane meadows, it is found in the Laguna, Cuyamaca, Palomar, and San Jacinto Mountains of southern California and in the mountains of northwestern Baja California. According to the U.S. Fish and Wildlife Service, the degradation of habitat by development, cattle grazing and trampling is primarily responsible for this plant's decline, which in turn is likely responsible for the threatened status of the rare Laguna Mountain Skipper butterfly, since it relies on Horkelia as its host plant. Horkelia is in the Rose family or Rosaceae.

Introduction to Valentien Collection
Gallery of Plants
Monarca: A Gallery of Butterfly Plants

Text by Margaret Dykens