Chaenomeles japonica – Japanese Quince

Botanical Family Rosaceae

Bloom Time April

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Colpus

Ornamentation Striate

Tectum Eutectate

Size (um)

Shape Triangular  

Pollen Color Tan, Dark yellow, Green

Honey Bee Resource

Pollen Source • •

Nectar  Source • • •

 

Cercis canadensis – Eastern Red Bud

Botanical Family Fabaceae

Bloom Time March – June

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Compound

Ornamentation Striate

Tectum Eutectate

Size (um) 

Shape Round

Pollen Color White

Honey Bee Resource

Pollen Source •

Nectar Source • •

Cercis canadensis is important for early brood rearing.

Sources

Sammataro, D. and Harman, A. (2013). “Major Flowers Important to Honey Bees in the Northeast and Mid-Atlantic States”. AlphaGraphics, Tucson, AZ.

 

 

Cercidiphyllum japonicum – Weeping Katsura

Botanical Family Cercidiphyllaceae

Bloom Time March – May

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Poroid

Ornamentation Granulate/Perforate

Tectum Eutectate

Size (um)

Shape Round  

Pollen Color 

Honey Bee Resource

Pollen Source •

Nectar Source N/A

Celtis occidentalis–Common Hackberry

Botanical Family Cannabaceae

Bloom Time March-June

 

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3+

Aperture Type Porate

Ornamentation Psilate

Tectum Eutectate

Size 

Shape Round 

Caulophyllum thalictroides – Blue Cohosh

Botanical Family Berberidaceae

Bloom Time March – May

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Colpus

Ornamentation Perforate/Granulate

Tectum Semitectate

Size (um)

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Flower photo contributed by Mount Cuba

Catalpa bignonioides – Southern Catalpa

 

Botanical Family Bignoniaceae

Bloom Time April – July

Pollen Characteristics

Dispersal Unit Polyad

Aperture Number 0-1

Aperture Type Inaperturate

Ornamentation Granulate/Perforate

Tectum Eutectate

Size (um)

Shape Round

Pollen Color Yellow

Honey Bee Resources

Pollen Source •

Nectar Source • •

Carex–Sedge

Carex albicans

Carex fraseri

Carex pennsylvanica

Carex platyphylla

Carex pennsylvanica – Pennsylvania Sedge

Botanical Family Cyperaceae

Bloom Time April – June

Pollen Characteristics

Dispersal Unit Monad

Aperture Number Inaperturate

Aperture Type N/A

Ornamentation Granulate/Perforate

Tectum Eutectate

Size (um)

Shape Irregular

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Cardamine diphylla – Crinkleroot

Botanical Family Brassiaceae

Bloom Time March – June

Pollen Characteristics

Dispersal Unit Monad 

Aperture Number 3

Aperture Type Compound

Ornamentation Striate

Tectum Eutectate

Size (um)

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Flower photo contributed by Mount Cuba

Cardamine concatenata – Cutleaf Toothwort

Botanical Family Brassicaceae

Bloom Time April – May

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 1

Aperture Type Sulcus

Ornamentation Granulate/Perforate

Tectum Eutectate

Size (um)

Shape

Pollen Color

Honey Bee Resources

Pollen Source

Nectar Source

Flower photo contributed by Mount Cuba