The organism is characterised by a lime green growth in culture with a rough stipe and variable head shape. The younger heads my have only one set of supporting structures for the conidia (uniserate) where older heads will have both phialides and metulae (biserrate).
The spores are unremarkable in appearance and would be classified as Asp/Pen like on an Air-O-Cell cassette sample.
|The rough stipe of Aspergillus flavus growing in culture 400x - N. Carlson|
|Aspergillus flavus on a culture plate - N. Carlson|
|Aspergillus flavus 400x heads can be biserrate and sometimes uniserrate- N. Carlson|