Ulmus americana – American Elm

Ulmus americana – American Elm

Ulmus americana – American Elm

Ulmus americana – American Elm

Ulmus americana – American Elm

Bloom Time March – April

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 4

Aperture Type Colpus

Ornamentation Psilate/Granulate

Tectum Eutectate

Size (um) 

Shape Round

Pollen Color Yellow, Green

Honey Bee Resources

Pollen Source • •

Nectar Source •