SHIVELA TRAIL, SANTA ROSA PLATEAU APRIL 2011
PAGE ONE
Photographs by Michael Charters




Inasmuch as I have not posted any galleries online so far tbis year, I took a break from my "sabbatical" and drove down to the Santa Rosa Plateau Ecological Reserve in Murrieta to photograph a species I had never seen before, Ranunculus hebecarpus. Of its common names, I like delicate buttercup the best. Its Latin specific epithet means "pubescent-fruited," from the Greek 'hebe' meaning "youth, puberty, pubescence," and it certainly is that. This annual species is described as having 0-3(5) petals and perhaps if I had been there sooner, I would have found some with more petals, but most of the flowers I saw were already in fruit, and since I had forgotten my hand lens it was really difficult to see the petals with the naked eye on those that were flowering. This is a tiny plant with petals 1-2 mm long, and I was lucky to see a few of them. The stem and leaves are soft-hairy, and the fruits have a short straight or curved beak. The picture of the fruits below next to a penny gives some idea of the diminutive nature of this plant, and I can see how it would be very easy to pass by it without noticing it. Although I was only there for a short time, I took a few other pictures as well. The Shivela Trail is in the multi-use area on the opposite side of the road from the main Reserve. The symbol ^ next to the common name indicates a taxon that was new to me when I photographed it on this field trip, and as always an asterisk indicates a non-native species.


 
 
Delicate buttercup ^
Ranunculus hebecarpus
Ranunculaceae
 
 
   



 
Western poison oak
Toxicodendron diversilobum
Anacardiaceae
 
Red maids
Calandrinia ciliata
Montiaceae


   
Few-leaved checkerbloom
Sidalcea sparsifolia
Malvaceae


 
California poppy
Eschscholzia californica
Papaveraceae



 
Blue dicks
Dichelostemma capitatum ssp. capitatum
Themidaceae

 
 
Windmill pink *
Silene gallica
Caryophyllaceae
 
 
Purple owl's clover
Castilleja exserta ssp. exserta
Scrophulariaceae
 


 
Johnny-jump-up
Viola pedunculata
Violaceae
 
Cobweb thistle
Cirsium occidentale var. occidentale
Asteraceae
 


       
   
Scarlet pimpernel *
Anagallis arvensis
Myrsinaceae
   
    Baby blue eyes
Nemophila menziesii var. menziesii
Boraginaceae


 
Purple clarkia
Clarkia purpurea ssp. quadrivulnera
Onagraceae
 
Miniature lupine
Lupinus bicolor
Fabaceae
 


 
 
Pomona locoweed
Astragalus pomonensis
Fabaceae