March

Dirca palustris – Eastern Leatherwood

Dirca Palustris–Eastern Leatherwood
Dirca Palustris–Eastern Leatherwood
Dirca Palustris–Eastern Leatherwood
Dirca Palustris–Eastern Leatherwood

Botanical Family Thymelaeaceae

Bloom Time March – May

Pollen Characteristics

Dispersal Unit Monad

Aperture Number Multiple

Aperture Type Porate

Ornamentation Reticulate

Tectum Eutectate

Size (um)

Shape Round

Pollen Color 

Honey Bee Resource 

Pollen Source

Nectar Source

Flower photo contributed by Mount Cuba

Epimedium sulphureum-Bishop’s Hat

Epimedium sulphureum–Bishop’s Hat
Epimedium sulphureum–Bishop’s Hat
Epimedium sulphureum–Bishop’s Hat
Epimedium sulphureum–Bishop’s Hat
Epimedium sulphureum–Bishop’s Hat
Epimedium sulphureum–Bishop’s Hat

 

Botanical Family Berberidaceae

Bloom Time  March – May

 

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Compound

Ornamentation Granulate/Perforate

Tectum Eutectate

Size

Shape Round

Dicentra cucullaria – Dutchman’s Breeches

Dicentra cucullaria–Dutchman’s Breeches
Dicentra cucullaria–Dutchman’s Breeches
Dicentra cucullaria–Dutchman’s Breeches
Dicentra cucullaria–Dutchman’s Breeches
Dicentra cucullaria–Dutchman’s Breeches

Botanical Family Papaveraceae

Bloom Time March – June

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Clypeate

Ornamentation Granulate/Perforate

Tectum Eutectate

Size (um)

Shape Oval

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Flower photo contributed by Mount Cuba

Delphinium tricorne–Dwarf Larkspur

Delphinium tricorne–Dwarf Larkspur
Delphinium tricorne–Dwarf Larkspur
Delphinium tricorne–Dwarf Larkspur
Delphinium tricorne–Dwarf Larkspur
Delphinium tricorne–Dwarf Larkspur

 

Botanical Family Ranunculaceae

Bloom Time March – July

 

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Compound

Ornamentation Granulate/Perforate

Tectum Eutectate

Size

Shape Oval

Cymophyllus fraserianus – Fraser’s Sedge

Cymophyllus fraserianus–Fraser’s Sedge
Cymophyllus fraserianus–Fraser’s Sedge
Cymophyllus fraserianus–Fraser’s Sedge
Cymophyllus fraserianus–Fraser’s Sedge
Cymophyllus fraserianus–Fraser’s Sedge
Cymophyllus fraserianus–Fraser’s Sedge

Botanical Family Cyperaceae

Bloom Time March – May

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 0-1

Aperture Type Inaperturate

Ornamentation Granulate

Tectum Eutectate

Size (um)

Shape Oval

Pollen Color

Honey Bee Resources

Pollen Source

Nectar Source

Flower photos contributed by Mount Cuba

Crocus vernus – Crocus Pickwick

Crocus vernus–Crocus Pickwick
Crocus vernus–Crocus Pickwick
Crocus vernus–Crocus Pickwick
Crocus vernus–Crocus Pickwick
Crocus vernus–Crocus Pickwick
Crocus vernus–Crocus Pickwick
Crocus vernus–Crocus Pickwick

 

Botanical Family Iridaceae

Bloom Time March – April

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 0-1

Aperture Type Inaperturate

Ornamentation Echinate

Tectum Eutectate

Size (um) 102

Shape Round

Pollen Color Yellowish orange

Honey Bee Resource

Pollen Source • • • 

Nectar Source • • 

Crataegus marshallii–Parsely Hawthorne

Crataegus marshallii–Parsely Hawthorne
Crataegus marshallii–Parsely Hawthorne
Crataegus marshallii–Parsely Hawthorne
Crataegus marshallii–Parsely Hawthorne

 

Botanical Family Roseaceae

Bloom Time February-June

 

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Colpus

Ornamentation Granulate/Perforate

Tectum Eutectate

Size 

Shape Triangular  

Collinsonia canadensis–Canada Horsebalm

 

Collinsonia canadensis–Canada Horsebalm
Collinsonia canadensis–Canada Horsebalm
Collinsonia canadensis–Canada Horsebalm
Collinsonia canadensis–Canada Horsebalm
Collinsonia canadensis–Canada Horsebalm
Collinsonia canadensis–Canada Horsebalm

Botanical Family Lamiaceae

Bloom Time March-June

 

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 6+

Aperture Type Sulcus

Ornamentation Granulate/Perforate

Tectum Semitectate

Size 

Shape Oval

Chamaedaphne calyculata – Leatherleaf

Chamaedaphne calycubata–Leatherleaf
Chamaedaphne calycubata–Leatherleaf
Chamaedaphne calycubata–Leatherleaf
Chamaedaphne calycubata–Leatherleaf
Chamaedaphne calycubata–Leatherleaf

Botanical Family Ericaceae

Bloom Time March – June

Pollen Characteristics

Dispersal Unit Tetrad

Aperture Number 0-1

Aperture Type Inaperturate

Ornamentation Psilate

Tectum Eutectate

Size (um)

Shape Round/Irregular 

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Flower photo contributed by Mount Cuba

Cercis canadensis – Eastern Red Bud

Cercis canadensis–Eastern Red Bud
Cercis canadensis–Eastern Red Bud
Cercis canadensis–Eastern Red Bud
Cercis canadensis–Eastern Red Bud
Cercis canadensis–Eastern Red Bud
Cercis canadensis–Eastern Red Bud
Cercis canadensis–Eastern Red Bud
Cercis canadensis–Eastern Red Bud
Cercis canadensis ‘The Rising Sun’ –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.