Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea Cyanus–Cornflower Thistle
Centaurea solstitialis–Yellow Star-Thistle
June
Centaurea cyanus – Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Centaurea cyanus–Cornflower Thistle
Botanical Family Asteraceae
Bloom Time May – July
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Granulate
Tectum Semitectate
Size (um)
Shape Round
Pollen Color Yellow, Brown
Honey Bee Resources
Pollen Source •
Nectar Source • •
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Rubus ordoratus–Purple-Flowering Raspberry
Botanical Family Rosaceae
Bloom Time June – August
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 3
Aperture Type Colpus
Ornamentation Granulate/Perforate
Tectum Eutectate
Size (um)
Shape Round
Pollen Color Gray, Yellow
Honey Bee Resources
Pollen Source • •
Nectar Source • •
Robinia pseudoacacia – Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Robinia pseudo acacia–Black Locust
Botanical Family Fabaceae
Bloom Time May – June
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 3
Aperture Type Colpus
Ornamentation Granulate/Perforate
Tectum Eutectate
Size (um) 27 um
Shape Round
Pollen Color Dark olive
Honey Bee Resource
Pollen Source • • •
Nectar Source • • • •
Sambucus canadensis – American Elderberry
Sambucus canadensis–American Elderberry
Sambucus canadensis–American Elderberry
Sambucus canadensis–American Elderberry
Sambucus canadensis–American Elderberry
Sambucus canadensis–American Elderberry
Sambucus canadensis–American Elderberry
Sambucus canadensis–American Elderberry
Sambucus canadensis–American Elderberry
Sambucus canadensis–American Elderberry
Sambucus canadensis–American Elderberry
Botanical Family Adoxaceae
Bloom Time June – July
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Microreticulate
Tectum Eutectate
Size (um)
Shape Round
Pollen Color Yellow, Green
Honey Bee Resources
Pollen Source • •
Nectar Source •
Flower photo contributed by Mount Cuba
Petunia spp.–Petunia
Petunia spp.–Petunia
Botanical Family Solanaceae
Bloom Time May to Frost
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 0
Aperture Type Sulcus
Ornamentation Pilate/Granulate
Tectum Eutectate
Size (um)
Shape Oval
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 • • • •
Opuntia humifusa – Low Prickly Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Opuntia humifusa–Creeping Pear
Botanical Family Cactaceae
Bloom Time May – August
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 6+
Aperture Type Porate
Ornamentation Reticulate
Tectum Semi-tectate
Size (um) 123
Shape Round
Pollen color
Honey Bee Resources
Pollen Source
Nectar Source
Flower photos contributed by Mount Cuba
Oenothera missouriensis–Missouri Evening Primrose
Oenothera missouriensis–Missouri Evening Primrose
Oenothera missouriensis–Missouri Evening Primrose
Oenothera missouriensis–Missouri Evening Primrose
Oenothera missouriensis–Missouri Evening Primrose
Oenothera missouriensis–Missouri Evening Primrose
Oenothera missouriensis–Missouri Evening Primrose
Botanical Family Onagraceae
Bloom Time May – August
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Granulate/Perforate
Tectum Eutectate
Size (um)
Shape Triangle
Pollen Color
The Anther's Promise 