ThistledownNo posterThistledown1935Queuebrick VideoQueueLWatchedWFavoriteFListsDiscussionWhere to watchCopy short link1935Thistledown12m·DocumentaryDirected by Mary Field·1935QueueLWatchedWFavoriteFWhere to watchListsRateRateNA/10 avgNo member ratings yetOverviewDiscussionA study of the Spear Thistle demonstrating the processes of fertilisation.DirectorMary FieldCinematographyF. Percy SmithStudioGaumont-British InstructionalOverviewDiscussionCastCrewDetailsWhere to watchNo cast listed.