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127 buckthorn family species
Rhamnus smithii
Ceanothus foliosus
Rhamnella franguloides
Ceanothus divergens
Ceanothus martini
Alphitonia zizyphoides
Ceanothus otayensis
Ceanothus jepsonii
Adolphia californica
Ceanothus arboreus
Ceanothus crassifolius
Ceanothus ferrisiae
Ceanothus incanus
Ceanothus leucodermis
Ceanothus purpureus
Colubrina californica
Colubrina texensis
Condalia ericoides
Pseudoziziphus celata
Pomaderris phylicifolia
Ceanothus decornutus
Rhamnus leptophylla
Ceanothus depressus
Ziziphus mucronata
Colletia spinosissima
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