Snapweed

Spotted Snapweed [English]: Impatiens balsamina
Spotted Snapweed [English]: Balsamina impatiens
Spotted Spurge [English]: Chamaesyce nutans
Spotted Spurge [English]: Chamaesyce maculata
Spotted Spurge [English]: Euphorbia nutans ...

Did you know? Impatiens are also called "Touch-Me-Not's and Snapweed". Why? Because water builds up in the seed walls, and can burst when touched, spraying seeds all over.
Propagation: ...

The native American species (two in the East, three in the far West, and one in Central America) are known as jewelweeds, snapweeds, and touch-me-nots, the names being used interchangeably and sometimes applied to the whole genus.

See also: Impatiens, Impatiens balsamina, Touch-me-not, Green, Rose