Fig. 3From: Artemisia dominant species succession relating to the soil moisture decrease in abandoned land of the Loess Plateau (China): comparative study of drought-adaptive characteristicsLeaf cross sections (×100) of the A. sacrorum (a), A. scoparia (b), A. giraldii (c) and A. annua (d). Both upper and lower palisade parenchyma was found in A. scoparia (b) and A. giraldii (c), whereas only upper palisade parenchyma was observed in A. sacrorum (a) and A. annua (a). PP palisade parenchyma, SP spongy parenchymaBack to article page