pbs Digest, Vol 22, Issue 26

ConroeJoe@aol.com ConroeJoe@aol.com
Wed, 24 Nov 2004 15:32:38 PST
In a message dated 11/24/2004 11:03:05 AM Central Standard Time, Mary Sue 

> The Jepson Manual lists all the plants of California includes naturalized 
> plants in its listings.


Sometimes members of this list provide information that reminds me of my 
years in California.  The Jepson Prairie is 10-15 miles south of Dixon, CA 
(between Vacaville and Davis).  I don't know how many bulb-type plants grow there but 
do recall seeing Brodiaea coronaria years ago.  A species of Fritillaria 
occurs in the general area.  I don't think either of these species actually grows 
in the pools; probably they grow on the nearby prairie.  

The preserve holds some of the finest vernal pools left in California; these 
are shallow basins 8-30 inches deep that fill with water in the cool rainy 
months.  The pools are a unique habitat for plants and animals--and sometimes 
provide exceptional wildflower displays.  The nearby land is level and water does 
not collect; thus the pools are special and rare.  As the pools dry in spring 
wildflowers grow in the basins--special wildflowers adapted to the seasonal 
wetland provided by the pools.  

I'm not sure how the pools originated, but many are gone due to plowing and 
other efforts to facilitate agriculture.  Without the pools a number of species 
might become much more rare.  

Conroe Joe

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