Genus: Betula — birch
Do not measure the female catkins until they are mature and almost falling apart.
Family
This genus’s species in New England
- Betula alleghaniensis
- Betula cordifolia
- Betula glandulosa
- Betula lenta
- Betula minor
- Betula nigra
- Betula papyrifera
- Betula pendula
- Betula populifolia
- Betula pubescens
- Betula pumila
Visit this genus in the Dichotomous Key