
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

Panicum virgatum–Switchgrass
Botanical Family Poaceae
Bloom Time July – February
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Echinate
Tectum Eutectate
Size (um) 27
Shape Round
Botanical Family Caprifoliaceae
Bloom Time October – November
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Echinate
Tectum Eutectate
Size (um) 62
Shape Round
Pollen Color Yellow
Pollen Source • •
Nectar Source • •
Botanical Family Lamiaceae
Bloom Time May – November
Dispersal Unit Monad
Aperture Number 3
Aperture Type Mircoreticulate
Ornamentation Granulate/Perforate
Tectum Eutectate
Size (um) 31
Shape Triangular
Pollen Color Orange, Red
Honey bee foragers collecting Lamium purpureum will typically also have a pollen dusting on their head and antennae.
Lamium spp. are valuable for brood building. All members of the mint family are attractive to bees.
Hodges, D. (1952). The pollen loads of the honey bee: a guide to their identification by colour and form. London: Bee Research Assoc. Ltd.
Sammataro, D. and Harman, A. (2013). “Major Flowers Important to Honey Bees in the Northeast and Mid-Atlantic States”. AlphaGraphics, Tucson, AZ.
Botanical Family Lamiaceae
Bloom Time March – November
Dispersal Unit Monad
Aperture Number 3
Aperture Type Colpate
Ornamentation Granulate/Perforate
Tectum Eutectate
Size (um) 31
Shape Round
Pollen Color
Pollen Source
Nectar Source
Botanical Family Asteraceae
Bloom Time August – December
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Echinate
Tectum Semitectate
Size
Shape Round
Botanical Family Asteraceae
Bloom Time July–November
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Echinate
Tectum Tectate
Size
Shape Round
Botanical Family Asteraceae
Bloom Time July – November
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Echinate
Tectum Semitectate
Size (um)
Shape Round
Pollen Color
Pollen Source
Nectar Source
Flower photo contributed by Mount Cuba
Botanical Family Solanaceae
Bloom Time July – Frost
Dispersal Unit Monad
Aperture Number 3
Aperture Type Compound
Ornamentation Striate
Tectum Eutectate
Size
Shape Oval
Botanical Family Iridaceae
Bloom Time September – November
Dispersal Unit Monad
Aperture Number N/A
Aperture Type Inaperturate
Ornamentation Striate, Porate
Tectum Eutectate
Size (um)
Shape Round
Pollen Color Orange
Pollen Source • • •
Nectar Source • • •