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Nyssa sylvatica, commonly known as tupelo, black tupelo, black gum or sour gum, [2] [a] is a medium-sized deciduous tree native to eastern North America from the coastal Northeastern United States and southern Ontario south to central Florida and eastern Texas, as well as Mexico.
Eucalyptus aggregata, commonly known as black gum, [3] is a medium-sized tree that is endemic to southeastern Australia.It has rough, flaky bark, sometimes smooth on the branches, lance-shaped leaves, green to yellow flower buds in group of seven, white flowers and more or less cup-shaped fruit.
Tupelo / ˈ t uː p ɪ l oʊ /, genus Nyssa / ˈ n ɪ s ə /, [3] is a small genus of deciduous trees with alternate, simple leaves. [1] [4] It is sometimes included in the subfamily Nyssoideae of the dogwood family, Cornaceae, but is placed by other authorities in the family Nyssaceae. [5]
The black spots can become about 5 millimeters in diameter. [1] As the season continues, the tissue around the original spot may become necrotic. [4] In severe cases of the disease there is premature shedding of leaves, blight of young leaves and shoots, and complete defoliation early in the fall. [1] Fruits that are infected become crumpled. [1]
Swamp tupelo can be distinguished from black tupelo by its smaller leaves, [4] which are less than 2.5 or 3 inches (6.4 or 7.6 cm), [5] [6] more commonly oblanceolate or narrow elliptic than the broader black gum leaves, [7] although the morphology is variable. [6] The seeds are more deeply grooved than those of black tupelo. [5]
Black gum may refer to several species of plants: Nyssa sylvatica, a tree native to eastern North America; Eucalyptus aggregata, a tree that grows in south eastern Australia; Eucalyptus ovata, a tree that grows in south eastern Australia
Gum tree is the common name of several trees and plants: Eucalypteae, particularly: Eucalyptus, which includes the majority of species of gum trees; Corymbia, which includes the ghost gums and spotted gums; Angophora, which includes Angophora costata Sydney red gum; Nyssa sylvatica, common names include blackgum, sour gum
Eucalyptus ovata, commonly known as swamp gum or black gum, [3] is a small to medium-sized tree species that is endemic to south-eastern Australia. It has mostly smooth bark, glossy green, lance-shaped to egg-shaped adult leaves, green flower buds in groups of seven, white flowers and conical to bell-shaped fruit.