They look like weeds to some, but they can come in different colors. Here are some common yellow colored cosmos. See also the related coreopsis plant flower.
|photographer||Dr. Ernesto P. Adorio|
|acknowledgements||Ella Jacildo(first to identify), Cecilia Court, Hermie Siroy, Remi Monter|
|location||U.P. Bliss, Philcoa|
|reference|| wikipedia entry|