All 89 bee plants
Marjoram pollen
Origanum vulgare
Dull tan-brown, in the brown range.
FloweringJuly to September
PollenFair
NectarVery good
SeasonSummer, Autumn
WhereGarden, Waste and verge, Hedgerow
A dependable herb source that keeps the bees busy on warm days well into late summer.

Easy to mistake for these
Closest pollen colours in our set, measured the same way the pollen identifier scores a match. Colour alone will not settle it, so check the flowering months and what is actually growing near your hives.
Out at about the same time
Saw a load like this going in?
Sample the colour against all 89 plants, then keep a forage record per hive.