BEST, Keith F. Scarlet Gaura or Butterfly Weed. Blue Jay, [S. l.], v. 23, n. 3, 1965. DOI: 10.29173/bluejay3318. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3318. Acesso em: 5 may. 2024.