Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Flowers of Vinca minor. (A, B) Wild-type. (C–F) Spectrum of floral phenotypes of the flore pleno variety (C, E and F photographed after transplantation into a garden) with an extra (inner) whorl of petals visible in (D) and (E). In (F), a stalked second flower arises from within the flower. Abbreviations: s, sepal; p, petal; ip, extra (inner) petals; if, stalked flower within flower.
