diplostephanous

Etymology
From.

Adjective

 * 1) Having two rows of stipulodes.
 * 2) * 1986, Jenny A. Moore, Botanical Society of the British Isles, Charophytes of Great Britain and Ireland (page 12)
 * When diplostephanous, the upper ring of stipulodes points upwards and the lower ring downwards.
 * When diplostephanous, the upper ring of stipulodes points upwards and the lower ring downwards.