$modus 0: smartphone
$modus 1: smartphone
Helianthus longifolius
Helianthus longifolius Pursh [Accepted]
Compositae
1 501012 Helianthus longifolius Pursh
A. Lounsberry, E. Rowan, Southern wild flowers and trees: p. 522, t. 173 (1901) [E. Rowan]