1. Dep. of Applied Biology, Faculty of Land and Food Systems Univ. of British Columbia Vancouver BC Canada
2. Univ. of British Columbia Botanical Garden 6804 SW Marine Drive Vancouver BC V6T 1Z4 Canada
3. Institute for Resources, Environment and Sustainability, Faculty of Science Univ. of British Columbia Vancouver BC Canada
4. Dep. of Forest and Conservation Sciences, Faculty of Forestry Univ. of British Columbia Vancouver BC Canada
5. Dep. of Plant, Food and Environmental Sciences, Faculty of Agriculture Dalhousie Univ. Truro NS Canada
6. Current address: Dep. of Biology, Acadia Univ. Wolfville NS B4P 2R6 Canada
7. Plant Gene Resources of Canada Agriculture and Agri‐Food Canada 107 Science Place Saskatoon SK S7N 0X2 Canada
8. San Diego Botanic Garden 300 Quail Gardens Dr. Encinitas CA 92024 USA
9. International Center for Tropical Agriculture (CIAT) Km 17, Recta Cali‐Palmira, Apartado Aéreo 6713 Cali 763537 Colombia