Sorry about repeating on the mis-spelling.
I just tried again and this is the message I get - same as before:
It appears that this genus is not valid. If you are certain that it is a valid genus, please post a message to the Plants Admins requesting that it be added. In the message, please let them know all the fields you entered.
So I did a cut and paste from your post above on the genus and it still said no.
I think this grain must not belong in the database.
I did look back at my system messages and I have added other images in the Buckwheat family but the cultivars were already in the database.