. . . . . . . . . "Systasea pulverulenta" . . "Oenothera rosea" . . "José Belem Hernández Díaz. 2017. Systasea pulverulenta nectar plant Oenothera rosea. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/6514153> on 05 Apr 2018." . . . . "http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world." .