"A violet with cleistogamous flowers. The objects which look like flower-buds are cleistogamous flowers…
Of the violet family (Violaceae), the arrow-leaved violet or Viola sagittata.
Of the violet family (Violaceae), the blue violet or Viola papilionacea.
Of the violet family (Violaceae), the Canada violet or Violaa canadensis.
Of the violet family (Violaceae), the downy yellow violet or Viola pubescens.
Of the violet family (Violaceae), the pale violet or Viola striata.
Of the violet family (Violaceae), the round-leaved violet or Viola rotundifolia.
Of the violet family (Violaceae): left, sweet white violet (Viola blanda); right, lance-leaved violet…