Ericales Research Program

Using morphological, molecular, and fossil data, we reveal how these plants evolved, diversified, and spread worldwide. Our global collaborations uncover new species, fueling discoveries in taxonomy, classification, and conservation.

Vision & Purpose

Explore the diversity and evolution of Ericales—an incredible order of flowering plants with around 8,000 species across 22 families. Discover more about their fascinating traits and global impact!

Program/Area Summary

The order includes many economically important edible plants such as tea (Camellia sinensis), kiwi (Actinidia), persimmon (Diospyros), Brazil nut (Bertholettia excelsa), star-apple (Chrysophyllum cainito), and blueberries and cranberries (Vaccinium). It also features popular ornamental plants like azaleas, rhododendrons (Rhododendron), primroses (Primula), Impatiens, Erica, Phlox, and Camellia. Our research uses morphological and molecular data to study species diversity, endemism, and evolution.

We explore questions about species discovery, taxonomy, classification, global dispersal (biogeography), and adaptation to environments. For groups with fossil records, we use paleobotanical data to estimate lineage divergence and ancient climate changes during the Cenozoic Period (Age of Mammals). Much of our work involves phylogenetic trees to infer evolutionary relationships. The program is highly collaborative, involving colleagues at BRIT, other U.S. institutions, and international partners.

Short-Term Goals

  • Lead the NSF-funded research project “Evolution and taxonomy of true blueberries (Vaccinium section Cyanococcus),” a 3-year study.  
  • Co-mentor a TCU master’s student with Dr. John Horner as part of the NSF grant.  
  • Share project findings through peer-reviewed and popular publications and presentations.  
  • Collaborate internationally on new species discoveries in the tribe Vaccinieae (blueberries and relatives) in Southeast Asia.  
  • Continue documenting new species, evolution, and classification in the tribes Gaultherieae of Ericaceae, storax family (Styracaceae), and sweetleaf family (Symplocaceae), with a focus on China, South America, and India. 

Long-Term Goals & Aspirations

  • Create and lead a “Vaccinieae Working Group,” a multi-institutional team to address issues in the taxonomy and evolution of the blueberry tribe (Ericaceae). 
  • Secure NSF or other funding to support this goal. 
  • Obtain NSF funding for a small grant to complete a taxonomic revision of Neotropical Styrax (Styracaceae).