The sunflower belongs to the genus Helianthus in the Composite family (Asterales order), which includes species with very diverse morphologies (herbs, shrubs, lianas, etc.). The genus Helianthus belongs to the Heliantheae tribe. This includes approximately 50 species originating in North and Central America. Attachments:  Biology_of_Sunflower

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Triticum aestivum, bread wheat, belongs to the order Poales (Glumiflorae), family Poaceae (Gramineae), tribe Triticeae, genus Triticum. The tribe Triticeae consists of 18 genera which are divided into two sub-groups, the Triticinae and the Hordeinae. The major genera in the sub-group Triticinae are Triticum, Aegilops, Secale, Agropyron and Haynaldia (Odenbach 1985, Zeller 1985, Körber-Grohne 1988). Attachments:  Biology_of_Wheat

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