Apocynaceae

Asclepias tuberosa – Butterfly Weed

Asclepias tuberosa – Butterfly Weed
Asclepias tuberosa – Butterfly Weed
Asclepias tuberosa – Butterfly Weed
Asclepias tuberosa – Butterfly Weed
Asclepias tuberosa – Butterfly Weed
Asclepias tuberosa – Butterfly Weed
Asclepias tuberosa – Butterfly Weed
Asclepias tuberosa – Butterfly Weed
Asclepias tuberosa – Butterfly Weed
Asclepias tuberosa – Butterfly Weed
Asclepias tuberosa – Butterfly Weed
Asclepias tuberosa – Butterfly Weed

Botanical Family: Apocynaceae

Bloom Time June – August

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Compound

Ornamentation Granulate/Perforate

Tectum Eutectate

Size (um) 

Shape Round

Pollen Color N/A (pollinium)

Honey Bee Resources

Pollen Source •

Nectar Source • • •

Resources

Brianna Borders and Eric Lee-Mäder (2014). Milkweeds: A Conservation Practitioner’s Guide: Plant Ecology, Seed Production Methods, and Habitat Opportunities. Xerces Society for Invertebrate Conservation.

Connie Krochmal (2016). Milkweeds as Honey Plants. Bee Culture: The Magazine of American Beekeeping.

Flower photos contributed by Mount Cuba

Vinca minor – Common Periwinkle

Vinca minor – Common Periwinkle
Vinca minor – Common Periwinkle
Vinca minor – Common Periwinkle
Vinca minor – Common Periwinkle
Vinca minor – Common Periwinkle
Vinca minor – Common Periwinkle
Vinca minor – Common Periwinkle
Vinca minor – Common Periwinkle
Vinca minor – Common Periwinkle
Vinca minor – Common Periwinkle
Vinca minor – Common Periwinkle
Vinca minor – Common Periwinkle

Botanical Family Apocynaceae

Bloom Time May – June

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 1

Aperture Type Sulcus

Ornamentation Granulate/Perforate

Tectum Eutectate

Size (um)

Shape Oval

Pollen Color Tan, Light Yellow, White

Honey Bee Resources

Pollen Source •

Nectar Source • •

Asclepias syriaca – Common Milkweed

Asclepias syriaca–Common Milkweed
Asclepias syriaca–Common Milkweed
Asclepias syriaca–Common Milkweed
Asclepias syriaca–Common Milkweed
Asclepias syriaca–Common Milkweed
Asclepias syriaca–Common Milkweed
Asclepias syriaca–Common Milkweed

Botanical Family Apocynaceae

Bloom Time June-August

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 0-1

Aperture Type Inaperturate

Ornamentation Psilate

Tectum Eutectate

Size (um)

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Resources

Flower photos contributed by Mount Cuba

Amsonia tabernaemontana – Eastern Bluestar

Amsonia tabernaemontana – Eastern Bluestar
Amsonia tabernaemontana – Eastern Bluestar
Amsonia tabernaemontana – Eastern Bluestar

Botanical Family Apocynaceae

Bloom Time March – April

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Colpus

Ornamentation Psilate

Tectum Eutectate

Size (um)

Shape Round

Pollen Color 

Honey Bee Resources

Pollen Source

Nectar Source

Resources

Flower photos contributed by Mount Cuba

Amsonia hubrichtii-Hubricht’s Bluestar

Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar
Amsonia hubrichtii – Hubricts Bluestar

Botanical Family Apocynaceae

Bloom Time April – May

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 3

Aperture Type Compound

Ornamentation Granulate/Perforate

Tectum Eutectate

Size (um) 56

Shape Round

Pollen Color

Honey Bee Resources

Pollen Source

Nectar Source

Resources

Flower photos from Mount Cuba