According to AHS:The angle between a branch or leaf and the scape. Also see: Branch, Scape. https://www.daylilies.org/ahs_...
That photo to me looks like the arrows are pointing to two terminal branches?
Am I looking at this incorrectly?
The arrows are pointing to white lines that outline the angle. It does look as though they are parts of a Y terminal rather a side branch off a scape. Also the white lines are "aliased" so perhaps a new picture is needed.