Hypericum calycinum – St. John’s Wort

Hypericum calycinum – St. John’s Wort

Hypericum calycinum – St. John’s Wort

Hypericum calycinum – St. John’s Wort

Hypericum calycinum – St. John’s Wort

Hypericum calycinum – St. John’s Wort

Hypericum calycinum – St. John’s Wort

Hypericum calycinum – St. John’s Wort

Botanical Family Hypericaceae

Bloom Time July – August

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Colpate

Ornamentation Psilate

Tectum Eutectate

Size (um)

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Hypericum kalmianum – Kalm’s St. John’s Wort

Hypericum kalmianum – Kalm’s St. John’s Wort

Botanical Family: Hypericaceae

Bloom Time July – August

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Compound

Ornamentation Reticulate

Tectum Eutectate

Size (um) 

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source