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127 buckthorn family species
Rhamnus cathartica
Frangula alnus
Frangula purshiana
Ceanothus velutinus
Rhamnus alnifolia
Ceanothus americanus
Ceanothus sanguineus
Ceanothus herbaceus
Ceanothus integerrimus
Ceanothus cuneatus
Ceanothus prostratus
Ceanothus pumilus
Frangula californica
Ceanothus thyrsiflorus
Ceanothus cordulatus
Rhamnus davurica
Rhamnus utilis
Ceanothus gloriosus
Rhamnus ilicifolia
Rhamnus lanceolata
Rhamnus japonica
Ceanothus fendleri
Frangula rubra
Ziziphus jujuba
Ceanothus arcuatus
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