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Photographs of Lonicera japonica. (A) I40 site during winter; green (left) and red (right) “color sides” are visibly distinct; (B) I40 site during summer; all L. japonica individuals presenting with green leaves; (C) Co-occurring red and green individuals of L. japonica as found in situ at RR; (D) Cross section of red L. japonica leaf, with anthocyanin pigments in the uppermost palisade layer.
