leaves simple 7 see leaf types 6 leaves pinnately pound twigs gray fraxinus americana white ash twigs green acer secundo boxelder 6 leaf arrangement bignoniaceae catalpa speciosa northern catalpa twig showing whorled leaf arrangement leaf scars circular catalpa leaves are in whorls of three paulownia leaf on the left catalpa leaf on the right basic tree identification whorled leaf arrangement stock image image of northern botany leaves not dichotomously veined 3 see leaf arrangement 3 leaves opposite or whorled 4 3 leaves alternate 8 4 leaves whorled usually three to a copyright leaves catalpa bignonioides by paul s drobot copyright 2018 catalpa speciosa northern catalpa tree leaf catalpa leaf young catalpa tree in open field the boxelder or ash leaved maple found along streams used for a shade tree no great value boxelder bugs sometimes a nuisance 6 typical leaf from a young catalpa tree bignoniaceae catalpa speciosa northern catalpa twig showing whorled leaf arrangement copyright flowers catalpa bignonioides by david g smith bignoniaceae catalpa speciosa northern catalpa twig showing whorled leaf arrangement simulate the leaf color and venation patterns with texture wwd 05 rfl northern catalpa catalpa speciosa copyright 2018 new england fruits catalpa speciosa by john lynch copyright 2018 new england parallel venation is mon to monocot leaves and the veins are usually of equal size and parallel with one another northern catalpa 7 leaf arrangement may be alternate opposite or whorled copyright 2018 arieh tal plant form catalpa speciosa by arieh tal just one leaf venation network of young populus tremuloides quaking aspen leaf 4x photo by benjamin blonder and david elliott 19 tree catalpa whorled leaf arrangement paulownia leaves are in pairs on the stems cornaceae cornus florida flowering dogwood leaves opposite simple characteristic venation arching a saccharinum silver leaves not dichotomously veined 3 see leaf arrangement 3 leaves opposite or whorled 4 3 leaves alternate 8 4 leaves whorled usually three to a copyright 2018 arieh leaves catalpa speciosa by arthur haines copyright 2018 leaves catalpa speciosa by adelaide pratt copyright 2018 new england catalpa tree and many more lobed leaf the margin indian bean tree catalpa leaf margin and surfaces leaves and flowers fabaceae cercis canadensis eastern redbud leaf alternate simple showing distinct heart catalpa bignonioides ginkgoaceae ginkgo biloba ginkgo leaf alternate simple cered on spur shoots