Blue Blossom Ceanothus (Ceanothus thyrsiflorus)

Woody shrub, with almost right-angled short dull-ended branches.  When not in bloom, this plant looks a lot like a Chaparral Pea, whose branch ends tend to be pointed.  

January

 

 

April

 

 

July

 

 

October

 

 

Leaves always present

 

Blue flowers

 

 

Field ID Tips

·         Oval leaves, about 2” long, ending in a point.

·         Flowers tiny in clusters, pale to medium blue in oval clusters.

 

Blue Blossom Ceanothus-16-Ceanothus thyrsiflorus-Apr 21 2012 Mt Tam-2

 

Blue Blossom Ceanothus-7-Ceanothus thyrsiflorus-Apr 21 2012 Mt Tam

 

Similar Plants

 

Wavyleaf ceanothus has small (less than 1” long) bumpy-edged leaves.

 

Wedgeleaf Ceanothus has small (less than 1” long) smooth-edged leaves.

 

Links:

Cal Photos

Wikipedia

Mountain Home to West Point Shrubs

 

 

Blue Blossom Ceanothus-11-Ceanothus thyrsiflorus-Apr 21 2012 Mt Tam

Blue Blossom leaves are quite a bit bigger than Wavyleaf or Wedgeleaf Ceanothus.

 

Blue Blossom Ceanothus-14-Ceanothus thyrsiflorus-Apr 21 2012 Mt Tam

Blue Blossom Ceanothus can make a dense floral displays.

 

Blue Blossom Ceanothus-4-Ceanothus thyrsiflorus-May 7 2012-2

Beautiful specimen on railroad grade on the south side of Mount Tamalpias, with the ocean in the background.