This may be seen on a few leaves or the entire plant. Sometimes this red coloration has been interpreted as an indicator of virus infection. The red coloration may be a general stress indicator, and we have found it frequently associated with crown or root rot of the arrowleaf clover plant. The percentage of red foliage on a plant may be correlated with the severity of the root disease . Note large brown lesion on crown and several lateral roots.
Tap root is rotted-off several inches below crown.