Plant Midrib with Hairs

A plant midrib runs down the center of a single foliage blade, separating a darker left surface from a paler right. The central vein is reddish and lined with short translucent hairs; the left area reads deep teal while the right appears olive under angled sunlight, photographed very close with a shallow depth of field. The darker side shows a cracked, tessellated cell network near the lower left that contrasts with the smoother pale side.