Santa Rosa Mountains Linanthus [Linanthus floribundus (Gray) Munz ssp. hallii Mason]
Listing CNPS List 1B R-E-D Code 3-1-3
State/Federal. Status -- None POLEMONIACEAE May-Jul.
Distribution: San Diego County, Riverside County
Habitat: Sonoran Desert Scrub is the reported habitat for this little known linanthus. Relatively barren, rocky terrain is common on the southern flanks of the Santa Rosa Mountains.
Known Sites: An old report is from the southern flanks of the rugged and seldom botanically explored Santa Rosa Mountains near Coyote Canyon. There are no known recent sightings.
Status: The current status of the Santa Rosa Mountains Linanthus is unknown. Historical inroads into the southern flanks of the Santa Rosa Mountains are minimal, and this species is accordingly presumed stable. More collection information is needed; provisionally, all populations should be fully protected. This plant differs from typical subspecies floribundus by its smaller flowers and leaves which are mainly entire (lower leaves sometimes 3-5 cleft). Several populations of Linanthus floribundus examined on the southern flanks of Santa Rosa Peak at higher elevations all keyed to subspecies floribundus.
Copyright © May 1994 Craig H. Reiser.
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