Greening along roads can be an alternative solution to overcome air pollution in urban areas. Direct contact of plants with pollutant particles in the air will affect the condition of plants, especially on leaves. Knowledge of morphological characteristics and stomata on leaves that have the potential to absorb pollutants is the basis for understanding plant responses to environmental changes. This research is descriptive research conducted in September-December 2021 with leaf samples taken in the area of ​​PT Semen Padang, Padang State University, and Andalas University forests. Data were analyzed by t test level of 5%. The results showed that the morphological characteristics of trembesi leaves in the PT Semen Padang and Padang State University areas had significant differences in the aspects of the number of leaflets, leaf length, leaf width, not significantly different in the length of the mother petiole and the number of leaf branch bones and the characteristics of the stomata did not show any difference which is evident from the aspect of stomata length and stomata density. The morphological characteristics of trembesi leaves in the Padang State University and Andalas University forests showed significant differences in the length of the mother petiole, the number of leaflets, and the number of leaf veins, there was no significant difference in leaf length and leaf width and showed a significant difference in the aspect of stomata length, but did not show a significant difference in terms of stomata density. Morphological characteristics of trembesi leaves in the PT Semen Padang area and Andalas University forest showed significant differences in the length of the mother petiole, number of leaflets, leaf length, leaf width, and number of leaf veins and did not show significant differences in terms of stomata length and stomata density.

Increasing the amount of vegetation or reforestation by planting trees is a solution in overcoming the problem of air pollution. Some of the criteria for plants that are able to accumulate pollutants are found in parasol sunshade plants. Direct contact of plants with air pollutant particles certainly affects plant leaves because the leaves will show phenotypic plasticity in response to abiotic stress. Therefore, research has been carried out on the morphological characteristics of parasol sunshade leaves as a greenery plant in the city of Padang. The study was conducted in September 2021. Samples were taken from two different locations, namely the Padang State University area and Andalas University. At each location samples were taken from 20 individuals and observations were made at the Botanical Laboratory, Department of Biology, FMIPA, Padang State University. Data were analyzed using t test with a significant level of 5%. The morphological characters of the parasol leaf in the Padang State University and Andalas University area showed significant differences in terms of leaf stalk length, number of leaflets in one petiole, number of leaf branches, and were not significantly different in leaf length and leaf width.