| 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 (map link) |
Photo | Genus Traits | Google Searches |
|---|---|---|---|---|
| Ceanothus
ceanothus, red-root |
2 | ![]() |
Shrub with many flowers in round heads. | Images Information |
| Rhamnus
buckthorn |
4 | ![]() |
Tree or shrub with few flowers. | Images Information |
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