IPA: /ˈkʌltɪˌvɑːr/
KK: /ˈkʌltɪˌvɑr/
A specific type of plant that has been developed or chosen for certain characteristics and is grown through careful farming.
The gardener decided to plant a new cultivar of tomatoes that are resistant to disease.
Cultivar is formed from "cultus" (meaning cultivated) and "variabilis" (meaning varying or changeable). The term refers to a plant variety that has been produced in cultivation by selective breeding.
Think of 'cultivated' plants that are 'varied' or different — that's what a cultivar is, a cultivated variety.
No commonly confused words.