The Field Studies Council flowers guide describes and illustrates the main characters used in identification. These include:Overview of flowers: whorl calyx sepals petals stamens carpelsFlower symmetry: actinomorphic and zygomorphicPerianth: anther filament; shape and arrangementCarpel: stigma style ovary ovule; inferior and superior ovariesLeaf: venation arrangement position margins bases shape stipules; simple and compound leavesText on the reverse side includes a checklist of the main characters you can record in the field. We've also included a guide to writing a floral formula and to describing fruits (berry drupe achene nut capsule etc) plant form (herb shrub tree) organs of vegetative reproduction (stolon rhizome etc) and inflorescence (spike panicle rhizome etc).