. . . . . . . . . "Poa annua" . . "Callitriche antarctica" . . "Antony Kusabs. 2013. Poa annua associated species with names lookup Callitriche antarctica. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/980237> 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." .