A, Entire plant of Sanguinaria Canadensis in its flowering stage.
a, rhizome and rootlets;
b, one of the outer bud-scales;
c, young leaf;
d, flower complete, except that the caducous sepals have fallen away. 3/4 natural size.
B, Different floral organs separated.
a, a sepal;
b and c, different petals;
e, pistil in different views.
C, Ground plan of flower.
This image is from Some further observations on the structure of Sanguinaria canadensis in the American Journal of Pharmacy, 1895.