In the wild the trees were 7–9 m tall. The boxelder is an undesirable tree for many urban situations and in some cities, planting it may be illegal. Acer negundo L. var. The inner bark was used medicinally to … Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. Sun. long, consisting of three or five leaflets. Box Elder Maple – Sensation. All rights reserved. Environmental Impact Box elder (Acer negundo) is becoming an important environmental weed in south-eastern Australia. var. • Ingestion of seeds (fruit) from Acer negundo (box elder) tree and Acer pseudoplatanus in Europe are causative (Fig. It’s an improved version of Box Elder Maple. CT, MA, ME, violaceum – The most attractive feature of this maple is that the flowers too are purple or reddish. Acer negundo by BotanischerVerein Sachsen-Anhalt, CC. evidence (herbarium specimen, photograph). Leaflets three, broadly elliptic, puberulent beneath; USA (Arizona, Missouri, Texas). • N. aceroides (L.) Moench var. RI, … 3b. 1). This scrappy tree is very drought- and cold-resistant and is a common street tree and windbreak. Your help is appreciated. Image Ron Kemeny. 0.3 mm on the leaves, stems; If recognized taxonomically, such plants assignable to var. vol 23, no. Although not as sweet as that of sugar maple, its sap is sometimes used for making syrup. you. L. N│E. Acer negundo is a dioecious species, meaning that each individual tree is either a male or a female (each flower has only male or female parts and each tree has only one of these flower types). Uses: A fast growing and compact cultivar for use as a shade tree or wind-break. Image N. Macer. There is a tree 45 × 81⁄4 ft at Kew but this is exceeded in height by one at Northerwood House, Hants, 52 × 3 ft (1963). RI, and 
is native, at least in part, to the other states in New England. A. negundo is a small and variable tree of little economic value native to much of North America. Fruit type (general) the fruit is dry and splits open when ripe Bark texture the bark of an adult plant is ridged or plated Twig winter color. The boxelder is an undesirable tree for many urban situations and in some cities, planting it may be illegal. mexicanum adds a new twist to a familiar species. In this book, rather than giving separate descriptions for individual subspecific taxa of this distinctive species, we provide a key to the subspecies and varieties, below. 2020 Leaves coarsely and simply toothed; inflorescence an ascending or erect panicle; petals linear-oblanceolate; fruit with strong raised veins over the seed; bark drab, not striped. … 3a. Native of N. America, where it is widely spread. Found this plant? ‘Variegatum’. To contact the editors: info@treesandshrubsonline.org. Notes. Acer violaceum (Kirchn.) It has been widely planted mainly for amenity purposes in non-native parts of North America, Europe and Asia where it is now regenerating freely and spreading, invading riparian zones and urban areas. It often has several trunks and can form impenetrable thickets. 3a. The boxelder is an undesirable tree for many urban situations and in some cities, planting it may be illegal. Ash-leaved maple (also known as box elder) is named for its compound leaves that resemble ash leaves, unlike other members of the maples (Acer). Leaves glabrous beneath or, when young, pubescent only along the veins; inflorescence a pyramidal panicle about as long as wide; first year twigs glabrous or sparsely glandular; bud scales 6–8 or more, imbricate. Leaflets ovate, 2 to 4 in. ; propeller-like motion as they fall to the ground. violaceum is known from The fruit, a winged samara, ripens from September through October and is dispersed from September through March [39,50,53]. CT, MA, ME, cv. Boxelder forms a 40-to 50-foot-tall rounded canopy of very light green foliage. Acer negundo 'Winter Lightning' NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to form a strategic partnership called N.C. californicum (Torr. long; each key 1 to 11⁄2 in. Cooperative Extension, which staffs local offices in all 100 counties and with the Eastern Band of Cherokee Indians. Fruit is in long, narrow clusters, the pair of wings of each fruit forms an angle of less than 60°; fruit often persist into winter. subsp. in part by the National Science Foundation. It was cultivated by Bishop Compton at Fulham in 1688. But the tree will grow just about anywhere and therefore it may have uses due to its adaptability. Middle-aged Boxelder. 4. It is widely distributed throughout the U.S. except in Alaska and Hawaii. Recommended citationCrowley, D. (2020), 'Acer negundo' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/acer/acer-negundo/). 34-37).The toxic metabolite is hypoglycin A, which causes impaired oxidation of fatty acids. Non-native: introduced NH, Although it is a maple and produces the familiar maple fruits, it differs from most maples through having odd-pinnate compound leaves. The stems are violet with a white bloom and produce red-flushed new leaves with red petiole and rachis (Pan Global Plants catalogue 2006). wide, the pair forming an angle of 60° or less. Find the perfect box elder acer negundo fruits stock photo. VT. All images and text © The female trees tend to keep the samaras (fruit) well into the winter or even into the next spring. Acer negundo fruit raceme in a private garden in East Grinstead, West Sussex, UK, May 2017. Gray) Wesm. long; the females in slender, drooping racemes.