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Acer rubrum, the red maple, also known as swamp, water or soft maple, is one of the most common and widespread deciduous trees of eastern and central North America. The U.S. Forest service recognizes it as the most abundant native tree in eastern North America. The red maple ranges from southeastern Manitoba around the Lake of the Woods on the border with Ontario and Minnesota, east to Newfoundland, south to Florida, and southwest to eastern Texas. Many of its features, especially its leaves, are quite variable in form. At maturity, it often attains a height of around 30 m (100 ft). Its flowers, petioles, twigs and seeds are all red to varying degrees. Among these features, however, it is best known for its brilliant deep scarlet foliage in autumn.
Acer pseudoplatanus, known as the sycamore in the United Kingdom and the sycamore maple in the United States, is a flowering plant species in the soapberry and lychee family Sapindaceae. It is a large deciduous, broad-leaved tree, tolerant of wind and coastal exposure. It is native to Central Europe and Western Asia, from France eastwards to Ukraine, northern Turkey and the Caucasus and southwards in the mountains of northern Spain and Italy.
Acer negundo, the box elder, boxelder maple, Manitoba maple or ash-leaved maple, is a species of maple native to North America. It is a fast-growing, short-lived tree with opposite, compound leaves. It is sometimes considered a weedy or invasive species, and has been introduced to and naturalized throughout much of the world, including in South America, Australia, New Zealand, South Africa, much of Europe, and parts of Asia.
Box Elder or Boxelder may refer to:
Acer is a genus of trees and shrubs commonly known as maples. The genus is placed in the family Sapindaceae. There are approximately 128 species, most of which are native to Asia, with a number also appearing in Europe, northern Africa, and North America. Only one species, Acer laurinum, extends to the Southern Hemisphere. The type species of the genus is the sycamore maple, Acer pseudoplatanus, the most common maple species in Europe. The maples usually have easily recognizable palmate leaves and distinctive winged fruits. The closest relatives of the maples are the horse chestnuts. Maple syrup is made from the sap of some maple species.
Acer cissifolium is a maple native to Japan, from southern Hokkaidō south through Honshū and Shikoku to Kyūshū.
The American elm cultivar Ulmus americana 'Pendula' was originally listed by William Aiton in Hort. Kew, 1: 320, 1789, as U. americana var. pendula, cloned in England in 1752 by James Gordon. From the 1880s the Späth nursery of Berlin supplied a cultivar at first listed as Ulmus fulva (Michx.) pendulaHort., which in their 1899 catalogue was queried as a possible variety of U. americana, and which thereafter appeared in their early 20th-century catalogues as U. americana pendula. The Scampston Elm, Ulmus × hollandica 'Scampstoniensis', in cultivation on both sides of the Atlantic in the 19th and 20th centuries, was occasionally referred to as 'American Weeping Elm' or Ulmus americana pendula. This cultivar, however, was distinguished by Späth from his Ulmus americana pendula.
The Wych Elm cultivar Ulmus glabra 'Pendula Variegata' was first described in 1850, and later by J. F. Wood in The Midland Florist and Suburban Horticulturist (1851) as U. montana pendula variegata, the 'broad-leaved variegated weeping mountain elm', and was said by him to have originated in and been distributed by the Pontey nursery of Kirkheaton, Huddersfield, Yorkshire. It was listed by Hartwig & Rümpler in Illustrirtes Gehölzbuch (1875) as Ulmus montana (:glabra) var. pendula variegataHort.
Pulvinaria innumerabilis is a small, flattened, brown scale insect about 1/8" long. In early summer mature females begin to secrete white, waxy, cottony-appearing egg sacs in which they lay as many as 1,500 eggs. Severely infested trees look like they are covered with strings of popcorn.
Weeping trees are characterized by soft, limp twigs. This characterization may lead to a bent crown and pendulous branches that can cascade to the ground. While weepyness occurs in nature, most weeping trees are cultivars. Because of their shape, weeping trees are popular in landscaping; generally they need a lot of space and are solitary so that their effect is more pronounced. There are over a hundred different types of weeping trees. Some trees, such as the cherry, have a variety of weeping cultivars. There are currently around 550 weeping cultivars in 75 different genera, although many have now disappeared from cultivation.
The Field MapleAcer campestre cultivar 'Eastleigh Weeping' or 'Weeping Eastleigh Field Maple' is a weeping tree that originated as a seedling at the Hillier & Son nursery, Ampfield, England, and was released in 1980. No trees are known to survive of this cultivar.
Acer palmatum, commonly known as Japanese maple, palmate maple, or smooth Japanese maple, is a species of woody plant native to Japan, Korea, China, eastern Mongolia, and southeast Russia. Many different cultivars of this maple have been selected and they are grown worldwide for their large variety of attractive forms, leaf shapes, and spectacular colors.
Acer platanoides 'Pendulum', or weeping Norway maple, is a weeping tree and a cultivar of Acer platanoides, the Norway maple. It was first found by Niemetz at Timișoara, Romania in 1901. No trees are known to survive of this cultivar.
Acer campestre 'Puncticulatum', or Weeping Speckled Field Maple, is a weeping tree and a cultivar of Acer campestre, the Field Maple. It was first described by Schwerin in 1893. No trees are known to survive of this cultivar.
Aesculus 'Pendula', or Weeping Red Horse Chestnut, was a weeping tree and a cultivar of the Aesculus Carnea Group, the Red Horse Chestnut Group, which is a cultivar group of artificial hybrids between Aesculus pavia and A. hippocastanum. The name first appeared in the 1902 edition of the Hand-list of Trees and Shrubs of the Royal Botanic Gardens, Kew without description. No trees are known to survive of this cultivar.
References
- ↑ Govaerts, R., Michielsen, K. & Jablonski, E. (2011). Untraced weeping broadleaf cultivars: an overview. Belgische Dendrologie Belge Archived 2012-03-22 at the Wayback Machine 2009: 19-30.
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