Morning Glories: Spring Glories, 1 by RON_CONVOLVULACEAE

RON_CONVOLVULACEAE wrote:
Here is a crop of the Polygonum photo posted and there is a new stem proceeding from right to left in the center of the photo...the darkened furrow (which looks like a dark line) along the upper edge of the partially 'flattened' stem is typical of Polygonum as is the angle at which the new leaves at the tip of the stems are emerging and unfurling...

The plant will progressively produce more of these features visible on the newest growth...