GRANITE LOOP TRAIL, SANTA ROSA PLATEAU MAY 2011
Photographs by Michael Charters




After my visit last week to the Wiashal Trail burn area at the Santa Rosa Plateau, Tom Chester notified me about the presence of the uncommon fire-follower taxon Caulanthus heterophyllus var. pseudosimulans on the hill near the Visitor Center, and since I had never seen it before, I drove down today to take some photographs. Unfortunately for me C.h. var. heterophyllus and C.h. var. pseudosimulans are being lumped together in the 2nd edition of the Jepson Manual because the latter was never validly published. The two taxa differ in flower color (although their differences in cauline leaf shape and dimensions seem a bit arbitrary), and although their geographic range overlaps, there is a clear concentration of var. heterophyllus in San Diego Co. and of var. pseudosimulans in Riverside Co., so it's at least arguable that they should be distinct taxa, and I thought it was interesting to post these pictures. The Granite Loop Trail does not have a wide diversity of flowering species at the moment, but there were a few things that attracted my attention among the proliferation of golden yarrow and winter vetch. An upside-down V next to the common name indicates a taxon I had never seen before, and an asterisk means a non-native species. Tom Chester's plant guide for the Granite Loop Trail is here.


   
Blue larkspur
Delphinium parryi ssp. parryi
Ranunculaceae


 
Slender-pod jewelflower ^
Caulanthus heterophyllus var. pseudosimulans
Brassicaceae

 



 
 
 
Golden yarrow
Eriophyllum confertiflorum var. confertiflorum
Asteraceae
 
 


 
Canyon clarkia
Clarkia epilobioides
Onagraceae
 
Purple owl's clover
Castilleja exserta ssp. exserta
Scrophulariaceae
 


 
Cutleaf geranium *
Geranium dissectum
Geraniaceae
   
American wild carrot
Daucus pusillus
Apiaceae
  Winter vetch *
Vicia villosa ssp. varia
Fabaceae
 


 
Goldfields
Lasthenia gracilis
Asteraceae
 



   
Chaparral gilia
Gilia angelensis
Polemoniaceae
 
Purple clarkia
Clarkia purpurea ssp. quadrivulnera
Onagraceae


 
 
Hollyleaf redberry
Rhamnus ilicifolia
Rhamnaceae
 


       
   
Baby blue eyes
Nemophila menziesii var. menziesii
Boraginaceae
   
    Mexican pink
Silene laciniata ssp. laciniata
Caryophyllaceae

[Formerly called Indian pink]


 
Chinese houses
Collinsia heterophylla
Plantaginaceae