A calluna is a common European heather of the genus Calluna.

Calluna

I assume by the Latin name you mean the genus/species. Heather is Calluna vulgaris. Heather is the only species in the genus Calluna, in the family of Ericaceae. Interestingly, the Latin counterpart of the English/Scottish first name Heather is Erica.

There are various heather types. Calluna Erica Daboecea to name only three.

Ling is another name for Scottish heather. The Latin name is Calluna vulgaris.