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Bark and leaf. It is the most widely distributed of all the American ashes; its range centers on the midwestern U.S. and Great Plains. Seedlings of the tree have a high tolerance to water logging [12] which may explain why the natural habitat of green ash is almost exclusively stream sides and bottomlands.
Green ash leaves are similar in color on upper and lower sides, and twigs are smoother. White ash leaves turn yellow or red in autumn. Despite some overlap, the two species tend to grow in different locations as well; white ash is a forest tree that commonly occurs alongside sugar maple while green ash is a pioneer species that inhabits ...
Pumpkin ash is a member of the olive family and is placed in section Melioides of the genus Fraxinus. [7]Historically, it was frequently called Fraxinus tomentosa Michx., but since Michaux used this name interchangeably with the species now known as green ash (F. pennsylvanica), the name Fraxinus profunda, which was applied by Benjamin Franklin Bush in 1901, was given precedence.
Sorbus americana is a relatively small tree, reaching 12 metres (40 ft) in height. [5] The American mountain-ash attains its largest specimens on the northern shores of Lake Huron and Lake Superior. [6] It resembles the European mountain-ash, Sorbus aucuparia. Bark Light gray, smooth, surface scaly.
It is a shrub or small tree up to 8 m (26 ft) tall. The leaves are broadly elliptic and often arranged in pseudowhorls. They measure up to 10 cm (3.9 in) long and 5 cm (2.0 in) wide and have bluntly toothed edges. Flowers arise from the twigs or leaf axils in short fascicles, and are very small with four or five 2 mm (0.08 in) long petals.
Fraxinus angustifolia subsp. angustifolia has become a weed in many parts of Australia, where it is known as Desert Ash. It has been widely planted as a street and park tree, and has spread to native bushland and grasslands, as well as stream banks and drainage lines, out-competing native plants for moisture, light and nutrients.
The plant has pinnately compound leaves with 5–11 membranous leaflets. It has axillary flower and fruit clusters. [3] The buds are hairy. The dark green leaves are bitter-aromatic, with crenate margins. [3] [6] The stalked follicles are green and then turn red [6] through deep blue through black. [3] [7] Flowers are dioecious, with yellow ...
Ptelea trifoliata is a small tree, or often a shrub of a few spreading stems, growing to around 6–8 m (20–26 ft) tall with a broad crown. [11] The bark is reddish brown to gray brown, with short horizontal lenticels (warty corky ridges), becoming slightly scaly, The plant has an unpleasant odor and bitter taste.