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Native Plant Trust: Go Botany Discover thousands of New England plants

Genus: Helianthus — sunflower

Natural variation and hybridization among species make Helianthus a difficult genus. Observation of small flower and fruit parts are necessary. You will need a good hand lens and a ruler with millimeter divisions in order to use this key. Reference: Schilling (2006).


Asteraceae (aster family)

This genus’s species in New England

Visit this genus in the Dichotomous Key