Morus rotundiloba "mojo berry" mulberry tree.

Hi,
I received a mulberry plant which is believed to be Morus rotundiloba "Mojo Berry". I see online that the species in from Thailand, the variety is a dwarf one, and that it has the same chromosome number as M. alba.

The person who gave the plant to me told me that the fruits are red. On the pictures online, it appears that "Mojo Berry" is black. Therefore I am unsure of what it is. Mislabeling happens quite often.

Anyone knows how to identify the mulberries at the species level? I only know that M. alba has long stems, while M. nigra has almost nonexistent stems on the fruit.

It appears that Morus rotundiloba is now known as Morus indica. There is a wikipedia article on Morus indica which talks about characteristics for identification. The fruit of some Morus species start white or pale pink and then turn bright red before turning dark purple and black. So the fruit color may be not the best criterion to judge.

Aha, thanks, this name helped me. According to the link below:

M. indica is relatively distinct, combining a scabrous upper leaf surface with elongated styles which protrude from the fruit. The first character helps to differentiate it from M. alba, the second from M. nigra.

https://www.treesandshrubsonline.org/articles/morus/morus-indica/#:~:text=indica%20is%20relatively%20distinct%2C%20combining,nigra.