Kalmar "Genus" tana nufin matsayi na haraji da aka yi amfani da shi a cikin rarrabuwar halittu wanda ƙungiyoyin jinsuna masu alaƙa. shuka. Halin halittar ya ƙunshi kusan nau'ikan tsire-tsire 25 na tsire-tsire masu tsire-tsire da ƙananan ciyayi, 'yan ƙasa zuwa yankuna masu zafi da wurare masu zafi na Amurka. Tsire-tsire suna da daraja don ganye masu launi kuma galibi ana girma a matsayin tsire-tsire na ado a cikin lambuna da kuma tsire-tsire na cikin gida.