Pyracantha koidzumii (Hayata) Rehder

RANCHO SANTA ANA BOTANIC GARDEN
Hora of the San Gabriel Mountains
Los Angeles County, California, U.S.A.
Rosaceae
Pyracantha koidzumii Rehder
BIG ROCK CREEK: just above the confluence of
Holcomb Canyon Creek, between Big Rock Creek Road
and the mouth of Holcomb Canyon. T4N R9W, E/2 NE/4
SE/4 sect 20, and SW/4 NW/4 SW/4 sect 21; elevation ca.
4115-4200 feet.
Riparian area dominated by Salix laevigata, Platanus
racemosa, Alnus rhombifolia, etc. with irregular openings
along margin; bouldery alluvial benches dominated by
mesophytic herbaceous perennials and scattered annuals;
lower slopes of the ridge dividing the two canyons vested
in chaparral elements.
Sparsely thorny shrub, introduced and persisting near
an abandoned cabin; fruiting.
Timothy S. Ross 2988	11 June 1990
Steve Boyd, Peter W. Fritsch
03093332