Claim: Helianthus gracilentus is a plant species within the family Asteraceae in the order Asterales, an order of dicotyledonous flowering plants known for composite flowers made of florets.
Evidence: Helianthus gracilentus is a species of sunflower known by the common name slender sunflower. Family: Asteraceae Order: Asterales Asterales /æstəˈreɪliːz/ is an order of dicotyledonous flowering plants that includes the large family Asteraceae (or Compositae) known for composite flowers made of florets, and ten families related to the Asteraceae.