PollyMapHackberry pollen photographed through the microscope in the PollyKit lab — verified in Arizona.
More verified photos of Hackberry
About hackberry pollen
Small round tree pollen with a few distinct pores, from hackberry trees and shrubs.
Plants that produce it
- Netleaf hackberry in desert washes and canyons
- Desert hackberry shrubs
- Common hackberry planted for shade
How to recognize it
Spherical grain with three to four round pores and a finely granular wall, sometimes faintly angular in outline.
Typical published size: 22–32 µm
Commonly confused with
- Elm — more pores, rippled wall
- Mulberry — only two pores
Allergy relevance
Moderately allergenic, contributing to early spring symptoms alongside elm and mulberry.
Where it's found
PollyMap has verified specimens of Hackberry from Arizona.
Common across the Southwest, Plains and eastern states.
Also searched as: hackberry pollen, celtis pollen, hackberry pollen allergy.
Related pollen specimens
Citing this specimen: PollyMap Specimen Library. “Hackberry — verified microscope specimen.” pollymap.com/library/specimen/hackberry-pollen-arizona-10bcce
Expert discussion
No published comments yet. If you study palynology or mycology, we'd value your read on this specimen.