Laphamia inyoensis (synonym Perityle inyoensis), known by the common names Inyo rockdaisy and Inyo laphamia, is a rare species of flowering plant in the aster family.Jepson eFloraFlora of North America
It is endemic to Inyo County in eastern California.
It is known from just 10 populations in the southern Inyo Mountains, at elevations of . California Native Plant Society, Inventory of Rare and Endangered Plants (online edition, v8-02): Perityle inyoensis . accessed 20 February 2017. Its habitat is dry, rocky mountain slopes, often in limestone.
Description Laphamia inyoensis is a subshrub made up of a cluster of several hairy slender stems up to about 25 centimeters long. The hairy, glandular leaves are one or two centimeters long, oval to triangular, pointed, and toothed on the edges. They may be arranged oppositely or alternately on the stems.
The inflorescence bears one to three flower heads each under a centimeter wide. The head has yellow disc florets and no ray florets. The fruit is a fuzzy achene about 3 millimeters long.
Conservation It is a California Native Plant Society listed Endangered species, and is threatened by proposed mining.
Taxonomy Laphamia inyoensis was named and scientifically described by Roxana Stinchfield Ferris in 1958. It is part of the genus Laphamia which is classified in the Asteraceae family. Albert Michael Powell proposed moving the species to Perityle in 1968, but this has not become accepted by other botanists. It has no varieties.
References
External links Calflora Database: Perityle inyoensis (Inyo rock daisy) Jepson eFlora (TJM2) treatment of Laphamia inyoensis USDA Plants Profile for Perityle inyoensis (Inyo rock daisy) UC CalPhotos gallery of Perityle inyoensis