Timothy Plowman

• Pre-Columbian plant migration
• A revision of the South American species of Brunfelsia (Solanaceae)
• Five new species of Brunfelsia from South America (Solanaceae)
• Ten new species of Erythroxylum (Erythroxylaceae) from Bahia, Brazil
• A new species of Lasiadenia (Thymelaeaceae) from Venezuela
• A study of systematic wood anatomy in Cannabis
• Botanical perspectives on coca
• Brunfelsia in ethnomedicine
• Four new Brunfelsias from northwestern South America
• Four new species of Erythroxylum (Erythroxylaceae) from northwestern Brazil
• Heliconia zebrina
• Latua pubiflora magic plant from southern Chile