Monday, March 26, 2012

Ipomoea nil

Ipomoea nil by Gerris2
Ipomoea nil, a photo by Gerris2 on Flickr.

A small plant showing deep reddish purple color on the hypocotyl. The Japanese found that hypocotyl color was an indicator of the color in flowers that would appear later in development. See more on this relationship on Dr. Yoshiaki Yoneda's web site: