Surprise: The Queensland sundews have been screened for their naphthoquinones before (Culham & Gornall 1994) but the chemical diversity within the group has prompted our (Jan Schlauer, Irmgard and me) investigation of the new hybrid ("D. x Andomeda") and, subsequently, a re-evaluation of the published data and comparison of their micro-morphology. Our study found that D. adelae and D. schizandra are both in regard of their chemistry as well as their indumentum clearly closer related than to D. prolifera, which as the only one in the group possesses still remnants of snap-tentacles. Enjoy Chemistry and surface micromorphology of the Queensland sundews (Drosera section Prolifera) . September CPN 48/3: 111-116 (click on title).
Photo shows the examined plants: