Duba Rana (sunan kimiyya; Helianthus annuus) tsiro ne mai fitowa shekara-shekara shuka daga cikin iyalin tsirrai na Asteraceae, tare da babban fulawa (capitulum). Jigon furen na iya yin tsayi zuwa mita 3 da tsayi, tare da kan fure wanda ka iya zama faɗin santimita 30 . Sauran nau'ikan Duba Rana sun haɗa da California Royal Sunflower, wanda ke da furen burgundy (ja + purple ). Shugaban furen a zahiri inflorescence ne wanda aka yi shi da ɗari ɗari ko dubunnan ƙananan fure da ake kira fure. Floananan florets suna kama da tsakiyar fure na yau da kullun, pseudanthium . Amfanin shuka shi ne cewa kwari da tsuntsaye suna ganinta cikin sauqi wadanda suke bata shi, kuma tana samar da dubban iri. Sunflower fure ne na jihar Kansas . Wannan shine dalilin da yasa wasu lokuta ake kiran Kansas da Sunflower State. Don girma sosai, sunflowers suna buƙatar cikakken rana. Sun fi kyau a cikin ƙasa mai dausayi, rigar, ƙasa mai kyau da ciyawa da yawa.