Ethnobotanical History: Duckweeds in Different Civilizations

Area of Science:

• Ethnobotany
• History of Science
• Cultural Anthropology

Background:

• Duckweeds are diminutive freshwater plants with a long history of human interaction.
• Ancient cultures across the globe utilized duckweeds in various aspects of life.

Purpose of the Study:

• To examine the historical and cultural significance of duckweeds across multiple ancient civilizations.
• To detail the usage of duckweeds from antiquity through the Middle Ages.

Main Methods:

• Historical review of textual evidence from Chinese, Christian, Greek, Hebrew, Hindu, Japanese, Maya, Muslim, and Roman cultures.
• Analysis of ethnobotanical data concerning medicinal, ritualistic, and culinary uses of duckweeds.

Main Results:

• Duckweeds were geographically widespread and integrated into classical cultures 2000 years ago.
• Ancient medicinal texts document duckweed use for fever reduction, with potential ethnobotanical convergence between Han Chinese and Maya cultures.
• Duckweeds featured in rituals, including lamp wicks, penitential food, medicinal incantations, and purification rites.
• The floating duckweed plant was unexpectedly prominent in vernacular and religious poetry of several ancient cultures.

Conclusions:

• Duckweeds held diverse and significant roles in ancient societies, extending beyond practical applications into cultural and spiritual realms.
• The study underscores the deep historical interconnectedness of human cultures through the utilization of common botanical resources.