Kalmar "Division Pteridophyta" tana nufin rabon haraji a cikin masarautar shuka. Ga ma’anar ƙamus na kalmar:Division: A cikin ilimin taxonomy, rabo shine matsayi ko nau'i da ake amfani da shi wajen rarraba halittu. Matsayi ne a ƙasa da masarauta kuma sama da ajin. Ana amfani da rarrabawa don rukuni na kwayoyin halitta masu irin wannan halaye. Waɗannan tsire-tsire suna hayayyafa kuma suna watsewa ta hanyar spores maimakon iri. Yawanci suna da nama na jijiyoyin jini, wanda ke ba su damar jigilar ruwa da abubuwan gina jiki a cikin tsarin su. Pteridophytes suna halin da ciwon ganye da ake kira fronds da kuma reproducing via spore-producing systems da ake kira sporangia.