Ƙirƙirar wani nau'i mai mahimmanci na wannan jumla Ryegrasses sun ƙunshi wasu nau'o'in da suke da muhimmanci ga ciyawa da kuma dabbobi, suna da amfani sosai ga dabbobi.
Tabbas, wani nau'i mai rikitarwa na jumla shine "Ryegrasses sun ƙunshi wasu nau'o'in da suke da mahimmancin ciyawa don duka lawn da kuma abincin dabbobi, amma kuma wasu weeds waɗanda zasu iya tasiri sosai akan samar da alkama da sauran amfanin gona. "