Columbia subject headings:
Botany--Ecuador.
Huao Indians--Ethnobotany.
Indians of South America--Ethnobotany--Ecuador.
Harvard subject headings:
Botany--Ecuador.
Ethnobotany--Ecuador.
Huao Indians--Ethnobotany.
Indians of South America--Ethnobotany--Ecuador.
Plants, Useful--Ecuador.
Princeton subject headings:
Botany--Ecuador.
Huao Indians--Ethnobotany.
Indians of South America--Ecuador--Ethnobotany.