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Caragana arborescens | |
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Shelter break of Caragana arborescens | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fabales |
Family: | Fabaceae |
Subfamily: | Faboideae |
Genus: | Caragana |
Species: | C. arborescens |
Binomial name | |
Caragana arborescens | |
Caragana arborescens, the Siberian peashrub, [2] Siberian pea-tree, [3] or caragana, is a species of legume native to Siberia and parts of China (Heilongjiang, Xinjiang) and neighboring Mongolia and Kazakhstan. [4] It was taken to the United States by Eurasian immigrants, who used it as a food source while travelling west. In some areas of the United States it is considered an invasive species. Introduced on the Canadian prairies in the 1880's, the hardy caragana provided shelter-belts, wildlife habitat, nitrogen fixation, and windbreaks to prevent soil erosion and snow drifting.
It is a perennial shrub or small tree growing 2–6 m (6 ft 7 in – 19 ft 8 in) tall. [4] Typically, it has a moderate to fast growth rate, being able to grow one to three feet during the first year after trimming.
The leaves vary from light green to dark green, and are alternate and compound with many small leaflets. Fragrant yellow flowers bloom in May or June. The fruits are legumes which contain many seeds, and ripen in July. As the seed pods dry they have a tendency to twist and pop open, releasing the seeds. [5]
Caragana arborescens can be grown as an ornamental plant and has been extensively used in windbreaks. [6] It has an extensive root system, and can be used in erosion control.
The production of seeds is very large, but they are small in size and bland in flavor. [7] [8] The seeds are edible by humans and by chickens, but should be cooked before being consumed by people. [9] [7] Caragana arborescens contains the non proteinogenic amino acid L-canavanine and may store from nearly 6 to 13% L-canavanine by dry weight. [10]
It is recommended for planting in the outer rows of multi-row plantings. It can be used to neutralize soil to prepare for further planting. As a legume, C. arborescens fixes nitrogen. It is suitable for planting in single-row field windbreaks where a dense, short barrier is desired.
C. arborescens is used for nesting by several songbirds. The seeds are occasionally eaten by a few songbirds. The plant is not a preferred food for browsing animals, but its fragrant flowers attract many pollen-consuming animals.
The Gleditsia triacanthos (Honey Locust), also known as the thorny locust or thorny honeylocust, is a deciduous tree in the family Fabaceae, native to central North America where it is mostly found in the moist soil of river valleys. Honey locust trees are highly adaptable to different environments, and the species has been introduced worldwide. Outside its natural range it can be an aggressive, damaging invasive species.
Robinia pseudoacacia, commonly known in its native territory as black locust, is a medium-sized hardwood deciduous tree, belonging to the tribe Robinieae of the legume family Fabaceae. It is native to a few small areas of the United States, but it has been widely planted and naturalized elsewhere in temperate North America, Europe, Southern Africa and Asia and is considered an invasive species in some areas, such as the temperate east coast of Australia where the cultivar "Frisia" was widely planted as a street tree before being classed as a weed. Another common name is false acacia, a literal translation of the specific name.
Legumes are plants in the family Fabaceae, or the fruit or seeds of such plants. When used as a dry grain for human consumption, the seeds are also called pulses. Legumes are grown agriculturally, primarily for human consumption; for livestock forage and silage; and as soil-enhancing green manure. Well-known legumes include beans, soybeans, chickpeas, peanuts, lentils, lupins, grass peas, mesquite, carob, tamarind, alfalfa, and clover. Legumes produce a botanically unique type of fruit – a simple dry fruit that develops from a simple carpel and usually dehisces on two sides.
Cercis canadensis, the eastern redbud, is a large deciduous shrub or small tree, native to eastern North America from southern Michigan south to central Mexico, west to New Mexico. Species thrive as far west as California and as far north as southern Ontario. It is the state tree of Oklahoma. The prevalence of the so-called "Columbus strain" has seen the residents of Columbus, Wisconsin embrace the plant into their city's identity. Known as the "Redbud City," the town hosts "Redbud Day" annually the Saturday before Mother's Day, organizing a variety of themed events to recognize the tree.
Juniperus virginiana, also known as eastern redcedar, red cedar, Virginian juniper, eastern juniper, red juniper, and other local names, is a species of juniper native to eastern North America from southeastern Canada to the Gulf of Mexico and east of the Great Plains. Further west it is replaced by the related Juniperus scopulorum and to the southwest by Juniperus ashei. It is not to be confused with Thuja occidentalis.
Tsuga heterophylla, the western hemlock or western hemlock-spruce, is a species of hemlock native to the west coast of North America, with its northwestern limit on the Kenai Peninsula, Alaska, and its southeastern limit in northern Sonoma County, California. The Latin species name means 'variable leaves'.
Colutea is a genus of about 28 species of deciduous flowering shrubs in the legume family Fabaceae, growing from 2–5 m tall, native to southern Europe, north Africa and southwest Asia. The leaves are pinnate and light green to glaucous grey-green. The flowers are yellow to orange, pea-shaped and produced in racemes throughout the summer. These are followed by the attractive inflated seed pods which change from pale green to red or copper in colour.
Colutea arborescens is a species of leguminous shrub known by the common name bladder-senna. It is native to Europe and North Africa, but it is known on other continents where it is grown as an ornamental and used in landscaping for erosion control. It is also known in the wild as an occasionally weedy escapee from cultivation.
Cytisus proliferus, tagasaste or tree lucerne, is a small spreading evergreen tree that grows 3–4 m (10–13 ft) high. It is a well known fertilizer tree. It is a member of the Fabaceae (pea) family and is indigenous to the dry volcanic slopes of the Canary Islands, but it is now grown in Australia, New Zealand and many other parts of the world as a fodder crop.
Elaeagnus commutata, the silverberry or wolf-willow, is a species of Elaeagnus native to western and boreal North America, from southern Alaska through British Columbia east to Quebec, south to Utah, and across the upper Midwestern United States to South Dakota and western Minnesota. It typically grows on dry to moist sandy and gravel soils in steppes, meadows or woodland edges.
Lathyrus sylvestris, the flat pea or narrow-leaved everlasting-pea, is a species of flowering plant in the pea and bean family Fabaceae. It is native to parts of Africa, Europe, and Asia.
A buffer strip is an area of land maintained in permanent vegetation that helps to control air quality, soil quality, and water quality, along with other environmental problems, dealing primarily on land that is used in agriculture. Buffer strips trap sediment, and enhance filtration of nutrients and pesticides by slowing down surface runoff that could enter the local surface waters. The root systems of the planted vegetation in these buffers hold soil particles together which alleviate the soil of wind erosion and stabilize stream banks providing protection against substantial erosion and landslides. Farmers can also use buffer strips to square up existing crop fields to provide safety for equipment while also farming more efficiently.
Malus baccata is an Asian species of apple known by the common names Siberian crab apple, Siberian crab, Manchurian crab apple and Chinese crab apple. It is native to many parts of Asia, but is also grown elsewhere as an ornamental tree and for rootstock. It is used for bonsai. It bears plentiful, fragrant, white flowers and edible red to yellow fruit of about 1 cm diameter.
Laburnum alpinum, the Scotch laburnum, Scottish laburnum or alpine laburnum, is a leguminous, (Leguminosae), deciduous tree.
Amorpha canescens, known as leadplant, downy indigo bush, prairie shoestring, or buffalo bellows, is a small, perennial semi-shrub in the pea family (Fabaceae), native to North America. It has very small purple flowers with yellow stamens which are grouped in racemes. Depending on location, the flowers bloom from late June through mid-September. The compound leaves of this plant appear leaden due to their dense hairiness. The roots can grow up to 5 m (16 ft) deep and can spread up to 1 metre radially. This plant can be found growing in well-drained soils of prairies, bluffs, and open woodlands.
Prunus caroliniana, known as the Carolina laurelcherry, Carolina cherry laurel, Carolina cherry, or Cherry laurel, is a small evergreen flowering tree native to the lowlands of Southeastern United States, from North Carolina south to Florida and westward to central Texas. The species also has escaped into the wild in a few places in California.
Kummerowia striata is a species of flowering plant in the legume family known by the common names Japanese clover and common lespedeza. It is native to much of Asia and it is present in the eastern United States as an introduced species.
Coronilla valentina, the shrubby scorpion-vetch, scorpion vetch or bastard senna, is a species of flowering plant in the genus Coronilla of the legume family Fabaceae, native to the Mediterranean Basin, and introduced into Kenya and the United States. It is an evergreen shrub growing to 80 cm (31 in) tall and wide, with pea-like foliage and fragrant, brilliant yellow flowers in spring and summer, followed by slender pods. Linnaeus observed that the flowers, remarkably fragrant in the daytime, are almost scentless at night.
Cytisus nigricans, the black broom, is a species of flowering plant in the subfamily Faboideae of the family Fabaceae. Growing 3–5 ft (0.91–1.52 m) tall, it is a slender deciduous shrub with erect branches. Masses of brilliant yellow, slightly fragrant pea-like flowers appear in long racemes on the current year's growth in summer and early autumn.
Astragalus crassicarpus, known as ground plum or buffalo plum, is a perennial species of flowering plant in the legume family, Fabaceae, native to North America. It was described in 1813. The fruit is edible and was used by Native Americans as food and horse medicine. It is a host of afranius duskywing larvae. It is also known as groundplum milkvetch and pomme de prairie.