Angiospermae - Rosales - Rhamnaceae

Belongs to Rhamnus according to F. H. Knowlton 1919

Sister taxa: Rhamnus (Frangula), Rhamnus acuminatifolius, Rhamnus acuta, Rhamnus alaternoides, Rhamnus alaternus, Rhamnus alpinus, Rhamnus belmontensis, Rhamnus californica, Rhamnus calyptus, Rhamnus catharticus, Rhamnus cleburni, Rhamnus coushatta, Rhamnus crenatulus, Rhamnus crenatus, Rhamnus dechenii, Rhamnus deformatus, Rhamnus deletus, Rhamnus elegans, Rhamnus eoligniticus, Rhamnus eorectinervis, Rhamnus eridani, Rhamnus fischeri, Rhamnus florissantensis, Rhamnus gaudini, Rhamnus goldianus, Rhamnus hemsleyana, Rhamnus inaequilateralis, Rhamnus intermedius, Rhamnus jujuba, Rhamnus kansensis, Rhamnus kirchneri, Rhamnus lesquereuxi, Rhamnus lotus, Rhamnus marginatus, Rhamnus meriani, Rhamnus mudgei, Rhamnus napeca, Rhamnus newberryi, Rhamnus novaecaesareae, Rhamnus obovatus, Rhamnus oenopolia, Rhamnus paliurus, Rhamnus parvifolia, Rhamnus plenus, Rhamnus precalifornica, Rhamnus prunifolius, Rhamnus purshiana, Rhamnus puryearensis, Rhamnus quilchensis, Rhamnus rectinervis, Rhamnus revoluta, Rhamnus salicifolius, Rhamnus similis, Rhamnus spinachristi, Rhamnus tenax, Rhamnus utilis, Rhamnus virgata, Rhamnus washakiensis, Rhamnus woottonensis, Rhamnus zizyphus

Ecology: "photoautotroph"

Distribution: there are no occurrences of Rhamnus williardi in the database

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Specimen images are retrieved through the ePANDDA API.