Kalmar “genus” tana nufin nau’in harajin da ake amfani da shi a ilmin halitta don rarraba kwayoyin halitta masu irin wannan halaye. Kalmar "Colutea" tana nufin jinsin tsire-tsire a cikin dangin Fabaceae, wanda aka fi sani da mafitsara sennas ko mafitsara-pods.Saboda haka, kalmar "genus Colutea" tana nufin rarrabuwa taxonomic na rukuni na shuke-shuken da ke cikin dangin Colutea a cikin dangin Fabaceae. Waɗannan tsire-tsire ana siffanta su da ɓangarorin ɓangarorin iri kamar mafitsara kuma galibi ana shuka su don ƙimar adonsu.