Ericaceae

Rhododendron maximum – Rosebay Rhododendron

Rhododendron maximum – Rosebay Rhododendron
Rhododendron maximum – Rosebay Rhododendron
Rhododendron maximum – Rosebay Rhododendron
Rhododendron maximum – Rosebay Rhododendron
Rhododendron maximum – Rosebay Rhododendron

Botanical Family Ericaceae

Bloom Time June – July

Pollen Characteristics

Dispersal Unit Tetrad

Aperture Number N/A

Aperture Type Inaperturate

Ornamentation Psilate

Tectum Eutectate

Size (um)

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Flower photo contributed by Mount Cuba

Rhododendron atlanticum – Dwarf Azalea

Rhododendron atlanticum – Dwarf Azalea
Rhododendron atlanticum – Dwarf Azalea
Rhododendron atlanticum – Dwarf Azalea
Rhododendron atlanticum – Dwarf Azalea

Botanical Family Ericaceae

Bloom Time April

Pollen Characteristics

Dispersal Unit Tetrad

Aperture Number N/A

Aperture Type Inaperturate

Ornamentation Psilate

Tectum Eutectate

Size (um)

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Flower photo contributed by Mount Cuba

Callona vulgaris – Scotch Heather

Callona vulgaris – Scotch Heather
Callona vulgaris – Scotch Heather
Callona vulgaris – Scotch Heather
Callona vulgaris – Scotch Heather
Callona vulgaris – Scotch Heather
Callona vulgaris – Scotch Heather
Callona vulgaris – Scotch Heather

Botanical Family Ericaceae

Bloom Time July – September

Pollen Characteristics

Dispersal Unit Tetrad

Aperture Number N/A

Aperture Type Inaperturate

Ornamentation Psilate

Tectum Eutectate

Size (um) 

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Erica carnea – Winter Heath

Erica carnea – Winter Heath
Erica carnea – Winter Heath
Erica carnea – Winter Heath
Erica carnea – Winter Heath
Erica carnea – Winter Heath
Erica carnea – Winter Heath
Erica carnea – Winter Heath
Erica carnea – Winter Heath
Erica carnea – Winter Heath

Botanical Family Ericaceae

Bloom Time January – March

Pollen Characteristics

Dispersal Unit Tetrad

Aperture Number >6

Aperture Type Colpus

Ornamentation Psilate

Tectum Eutectate

Size (um) 

Shape Round

Pollen Color Light Green, Green

Pieris japonica – Japanese Pieris

Pieris japonica – Japanese Pieris
Pieris japonica – Japanese PierisPieris japonica – Japanese Pieris
Pieris japonica – Japanese Pieris
Pieris japonica – Japanese Pieris
Pieris japonica – Japanese Pieris
Pieris japonica – Japanese Pieris

Botanical Family Ericaceae

Bloom Time April

Pollen Characteristics

Dispersal Unit Tetrad

Aperture Number Inaperturate

Aperture Type N/A

Ornamentation Psilate

Tectum Eutectate

Size (um) 

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source •

Nectar Source •

This flower is often visited more by bumble bees than honey bees, on average.

 

Rhododendron minus – Piedmont Rhododendron

Rhododendron minus – Piedmont Rhododendron
Rhododendron minus – Piedmont Rhododendron
Rhododendron minus – Piedmont Rhododendron
Rhododendron minus – Piedmont Rhododendron
Rhododendron minus – Piedmont Rhododendron
Rhododendron minus – Piedmont Rhododendron
Rhododendron minus – Piedmont Rhododendron
Rhododendron minus – Piedmont Rhododendron

Botanical Family: Ericaceae

Bloom Time April – May

Pollen Characteristics

Dispersal Unit Tetrad

Aperture Number 3

Aperture Type Colpus

Ornamentation Psilate

Tectum Eutectate

Size (um) 60

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Flower photos contributed by Mount Cuba

Rhododendron prunifolium – Plumleaf Azalea

Rhododendron prunifolium – Plumleaf Azalea
Rhododendron prunifolium – Plumleaf Azalea
Rhododendron prunifolium – Plumleaf Azalea
Rhododendron prunifolium – Plumleaf Azalea
Rhododendron prunifolium – Plumleaf Azalea
Rhododendron prunifolium – Plumleaf Azalea
Rhododendron prunifolium – Plumleaf Azalea
Rhododendron prunifolium – Plumleaf Azalea

Botanical Family Ericaceae

Bloom Time July – August

Pollen Characteristics

Dispersal Unit Tetrad

Aperture Number 3

Aperture Type Colporate

Ornamentation Psilate

Tectum Eutectate

Size (um) 57

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Flower photo contributed by Mount Cuba

Oxydendrum arboreum – Sourwood

 

Oxydendrum arboreum–Sourwood
Oxydendrum arboreum–Sourwood
Oxydendrum arboreum–Sourwood
Oxydendrum arboreum–Sourwood
Oxydendrum arboreum–Sourwood
Oxydendrum arboreum–Sourwood
Oxydendrum arboreum–Sourwood

Botanical Family Ericaceae

Bloom Time June – July

Pollen Characteristics

Dispersal Unit Tetrad

Aperture Number 3

Aperture Type Compound

Ornamentation Reticulate

Tectum Eutectate

Size (um) 40

Shape Round

Pollen Color Cream, White

Honey Bee Resources

Pollen Source • •

Nectar Source • • • •

Leucothoe fontanesiana – Fetter-Bush

Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush
Leucothoe fontanesiana–Fetter-Bush

Botanical Family Ericaceae

Bloom Time May

Pollen Characteristics

Dispersal Unit Tetrad

Aperture Number 3

Aperture Type Colpus

Ornamentation Psilate/Perforate

Tectum Eutectate

Size (um) 43

Shape Irregular 

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Flower photo contributed by Mount Cuba

Kalmia latifolia – Mountain Laurel

Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel
Kalmia latifolia–Mountain Laurel

Botanical Family Ericaceae

Bloom Time May

Pollen Characteristics

Dispersal Unit Tetrad

Aperture Number 3

Aperture Type Sulcus

Ornamentation Psilate

Tectum Eutectate

Size (um) 30

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Flower photo contributed by Mount Cuba