Adenium swazicum pointy petals

The leaves around this Adenium swazicum flower are quite long. The folding along the sunken leaf midrib is consistent. Some of the leaf-tips are not pointed here, but rounded.

The petal tips in picture are broad and attenuating to tiny, protruding points. The petals of this plant may, like the leaves, be rounded on some plants, not pointed as here.

The flower in picture is dark in the throat, some purple lines from inside the tube stopping abruptly just outside the corolla mouth (Frandsen, 2017; Smith, et al, 2017; Smith and Crouch, 2009; Onderstall, 1984; iNaturalist).