Robert W. Freckmann Herbarium

Rhamnaceae: Buckthorn

Trees or shrubs with small regular flowers of 5 petals with stamens opposite petals and alternate to 5 sepals. Petals fold inward in the bud. Leaves mostly alternate but can appear opposite. Branches often with long alternate thorns. Fruit bitter and astringent. Pith of stems or roots sometimes reddish-yellow.
Flower Formula:  Sepals 5; Petals 5 Glossary

Genus 
(Click for Taxon List)
WI Taxa
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Photo Genus Traits Google Searches
Ceanothus
ceanothus, red-root
2 Photo of Ceanothus Shrub with many flowers in round heads. Images   Information
Rhamnus
buckthorn
4 Photo of Rhamnus Tree or shrub with few flowers. Images   Information


         
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