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Male flowers Seeds of Fraxinus excelsior, popularly known as "keys" or "helicopter seeds", are a type of fruit known as a samara. It is a large deciduous tree growing to 12–18 m (39–59 ft) (exceptionally to 43 m or 141 ft) tall with a trunk up to 2 m (6.6 ft) (exceptionally to 3.5 m or 11 ft) diameter, with a tall, narrow crown. [2]
European ash in flower Narrow-leafed ash (Fraxinus angustifolia) shoot with leaves. Fraxinus (/ ˈ f r æ k s ɪ n ə s /), commonly called ash, is a genus of plants in the olive and lilac family, Oleaceae, [4] and comprises 45–65 species of usually medium-to-large trees, most of which are deciduous trees, although some subtropical species are evergreen trees.
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 fruit is a samara comprising a single seed 1–2 cm long with an elongated apical wing 2.5–4 cm long and 5–7 mm broad. [1] It is closely related to Fraxinus nigra (black ash) from eastern North America, and has been treated as a subspecies or variety of it by some authors, as F. nigra subsp. mandschurica (Rupr.)
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.
Foliage (dark green) and fruit (light green) of a mature specimen. In Arizona, the range of Fraxinus velutina is centered on the Mogollon Rim, from the northwest in the Grand Canyon feeder canyons of southern Utah and Nevada, to the central-east White Mountains (Arizona) merging into the same mountainous area of western New Mexico, then to the Rio Grande valley south to trans-Pecos Texas.
Flower Pennisetum pedicellatum growing in the wild. Desho is a herbaceous perennial grass which has a massive root system that anchors to the soil. [5] It has a high biomass producing capacity and grows upright with the potential of reaching 90 cm to 120 cm in height depending on soil fertility.
Dichanthium annulatum is a species of grass in the family Poaceae.It is commonly used as a forage for livestock.. Spikelet with long awn. Common names include marvel grass, Diaz bluestem, Kleberg bluestem, Hindi grass, ringed dichanthium, sheda grass, medio bluestem (var. papillosum), [1] jargu grass, Delhi grass, vuda bluegrass, two-flowered golden-beard, [2] Santa Barbara grass.