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Significats de Helianthus annuus en anglès

Annual sunflower grown for silage and for its seeds which are a source of oil; common throughout United States and much of North America.

        Ús de Helianthus annuus en anglès
        1
        Seeds of Helianthus annuus and of two species of Ipomoea (those of 'I.
        The Power of Movement in Plants
        2
        Helianthus annuus (Compositae).-Theupper part of the hypocotyl moved during the day-timein the course shown in the annexed figure (Fig.
        The Power of Movement in Plants