Leaf architecture, venation pattern, and epidermal studies were performed on 14 woody taxa of the family Papilionaceae from Karachi, Pakistan. The woody Papilionaceous plants are characterized by alternate, unlobed leaves with an acute apex angle, entire margins, marginal petioles, pulvinate petiole bases, and 2° vein spacing that increases towards the base. On the other hand, each taxon can be distinguished based on its specific leaf architecture and micromorphological characters. Compound leaves were found in a majority of the taxa. While, simple leaves were observed in only three species. Primary venation (1°) was pinnate in majority while acrodromous (basal) in Crotalaria burhia. Secondary venation (2°) was mostly festooned brochidodromous while, brochidodromous in two species. The number of basal veins was 3 in all taxa except 5 in Cajanus cajan. Four stomatal types were observed viz., anomocytic, anisocytic, actinocytic and paracytic. Amongst them, anisocytic type was the most dominant. Likewise, trichomes were present in all taxa except for Pongamia pinnata, which was glabrous. Based on all studied aspects, each taxon was distinguished and an artificial key was also made. Further, the data was analyzed numerically to assess the relationship among the studied plants. The studied characters were found useful in the taxonomic delimitation of the woody papilionoid legumes from Karachi, Pakistan.