Helianthus annuus x decapetalus = H. x multiflorus

Helianthus annuus x decapetalus = H. x multiflorus - Species Dictionary - UK and Ireland : iSpot Nature - Your place to share nature. iSpot is a website aimed at helping anyone identify anything in nature. Once you've registered, you can add an observation to the website and suggest an identification yourself or see if anyone else can identify it for you.

NHMSYS0001754771
Thin-Leaved Sunflower
Natural History Museum's UK Species Inventory
Plants
Plantae, Tracheophyta, Magnoliopsida, Asterales, Asteraceae, Helianthus, Helianthus annuus x decapetalus = H. x multiflorus