Panicum virgatum–Switchgrass
Botanical Family Poaceae
Bloom Time July – February
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Echinate
Tectum Eutectate
Size (um) 27
Shape Round
Uncategorized
Packera antennarifolia–Shale Barren Ragwort
Packera antennarifolia–Shale barren Ragwort
Packera antennarifolia–Shale barren Ragwort
Botanical Family Asteraceae
Bloom Time April – May
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Echinate
Tectum Eutectate
Size (um) 27
Shape Round
Pachysandra terminalis – Japanese Spurge
Pachysandra terminalis–Japanese Spurge
Pachysandra terminalis–Japanese Spurge
Pachysandra terminalis–Japanese Spurge
Pachysandra spp. – Pachysandra
Pachysandra spp. – Pachysandra
Botanical Family Buxaceae
Bloom Time April
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 6+
Aperture Type Porate
Ornamentation Reticulate
Tectum Eutectate
Size (um) 41
Shape Round
Pollen Color Yellow
Honey Bee Resources
Pollen Source • •
Nectar Source • •
Pachysandra procumbens – Allegheny Spurge
Pachysandra procumbens–Allegheny Spurge
Pachysandra procumbens–Allegheny Spurge
Pachysandra procumbens–Allegheny Spurge
Pachysandra spp. – Pachysandra
Pachysandra procumbens–Allegheny Spurge
Pachysandra procumbens–Allegheny Spurge
Pachysandra procumbens–Allegheny Spurge
Pachysandra procumbens–Allegheny Spurge
Pachysandra procumbens–Allegheny Spurge
Pachysandra spp. – Pachysandra
Pachysandra spp. – Pachysandra
Botanical Family Buxaceae
Bloom Time March – April
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
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 • • • •
Oxalis violacea–Violet Woodsorrel
Oxalis violacea–Violet Woodsorrel
Oxalis violacea–Violet Woodsorrel
Oxalis violacea–Violet Woodsorrel
Oxalis violacea–Violet Woodsorrel
Oxalis violacea–Violet Woodsorrel
Oxalis violacea–Violet Woodsorrel
Oxalis violacea–Violet Woodsorrel
Oxalis violacea–Violet Woodsorrel
Oxalis violacea–Violet Woodsorrel
Botanical Family Oxalidaceae
Bloom Time May
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Reticulate
Tectum Semi-tectate
Size (um) 28
Shape Round
Marshallia mohrii – Mohrs Barbara Button
Marshallia mohrii – Mohrs Barbara Button
Marshallia mohrii – Mohrs Barbara Button
Marshallia mohrii – Mohrs Barbara Button
Botanical Family Asteraceae
Bloom Time May – August
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Echinate
Tectum Eutectate
Size (um) 36
Shape Round
Pollen Color
Honey Bee Resources
Pollen Source
Nectar Source
Flower photos contributed by Mount Cuba
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 perennis – Little Evening Primrose
Oenothera perennis–Little Evening Primrose
Oenothera perennis–Little Evening Primrose
Oenothera perennis–Little Evening Primrose
Oenothera perennis–Little Evening Primrose
Oenothera perennis–Little Evening Primrose
Oenothera perennis–Little Evening Primrose
Oenothera perennis–Little Evening Primrose
Oenothera perennis–Little Evening Primrose
Botanical Family Onagraceae
Bloom Time May – August
Pollen Characteristics
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Porate
Tectum Eutectate
Size (um) 116
Shape Triangle
Pollen Color Yellow
Honey Bee Resources
Pollen Source • •
Nectar Source •
Flower photos contributed by Mount Cuba
Pollen Load Identification
The pollen load of Oenothera spp. is typically large and untidy, usually trailing rather than compact.
Resources
Hodges, D. (1952). The pollen loads of the honey bee: a guide to their identification by colour and form. London: Bee Research Assoc. Ltd.
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 