The bark is gray or light brown, thick, fibrous, heavily ridged, and furrowed. Locust. Brett Chedzoy / CCE. Black locust (Robinia pseudoacacia L.) is a legume belonging to the pea (Fabaceae) family. black locust Fabaceae Robinia pseudoacacia L. symbol: ROPS Leaf: Alternate, pinnately compound, with 7 to 19 leaflets, 8 to 14 inches long. The trunk is quite short and tends to form double crowns. Having a fruit bearing plant in your garden can be a plus point of your garden. It has pinnate dark blue-green leaves, with each leaf having up to 23 lance-shaped to ovate leaflets. http://www.biosurvey.ou.edu/shrub/rops.htm Spines are more prevalent on suckers, and are absent in some cultivated varieties. The white flowers hang in white panicles up to 20 cm (7.9 in) long and appear after the leaf shoots. The flowers provide a good source of nectar for honeybees (5). Accessed 2003 Nov 14. of Michigan Dearborn. Black locust grows naturally on a wide range of sites but does best on rich moist limestone soils. Throughout May and June it produces clonal, drooping clusters of fragrant white flowers. ... infected trees can go a long way. University Wisconsin Robinia pseudoacacia-- Black Locust Page 2 Figure 2. Center vein is flat on upper surface, grooved and rounded beneath. Ostermiller It reproduces by root suckering and stump sprouting to form clones, which are all connected by a fibrous root system. The hard, strong wood is very durable when in contact with the soil. Allergic reactions of Black Locust are Abdominal pain, Depression, Diarrhea, Digestive Problems, gastro-intestinal problems, Kidney Disease, Liver disease, Nausea, Vomiting and weakness whereas of Tamarind tree have Diarrhea, Hives, Nausea and Vomiting respectively. Black locust produces hanging clusters of very fragrant white flowers in spring. The black locust tree flowers are rich in nectar, making this a beautiful honey plant. fan-shaped; wildflowers; perennials; Apps; Search; Compound Leaves. 589 p. The http://www.hort.purdue.edu/newcrop/proceedings1993/V2-432.html The thorns of black locust trees are short, when compared to that of honey locusts. Leaf: Oddly pinnate, 7-19 leaflets, egg-shaped, each leaflet 1 -2 inches long, smooth margins. Accessed 2003 Nov 14. eNature.com  folding up. Morphology Size and shape: It is a medium-sized tree, averaging 12 to 30 m in height and 30 to 60 cm (up to 150 cm) in diameter. As compared to some other locust species, the seed pods of the black locust are small and light. A central stalk of 20-30 cm in length produces 7-9 leaflets, as well as a terminal leaflet. It grows quickly and can reach heights between 40 and 100 feet. Each leaf 6-14 inches long. They do not have the branched thorns that are seen on the trunk of honey locust trees. A tree in this condition should have been cut down long ago. Appalachians, Virginia, the lower Ohio Valley, and in the Ozarks (4).It Thorns have been used for carding wool. Leaves resemble sprigs of grapes; green above and paler below. It has also been found growing in disturbed areas such as fields Each leaf has nine to nineteen leaflets, that are roughly oval. Thorns can be found at the base of the leaf stalk. Characteristic of the common Robinie are the red-brown thorns, which are up to nine inches long. The black locust is deciduous so that it leaves … Each leaf has a single leaflet at the tip. This flowering tree is grown in many parts of the world, and different regions even have specific species or hybrids found in their respective areas. is oval in shape (5). 2003. The buds of the Black locust are hardly recognizable. The undersides of the leaves … New Each leaflet long) and doesn’t have hollow stems Locations: Most prevalent in the Palos region, where it is the dominant woody invasive shrub. A mature black locust tree produces numerous branches, and has a dark and deeply furrowed bark. purposes (8). The leaves of the Black Locust are alternate, compound, and have seven to twenty-one leaflets. Flower: Perfect, showy and fragrant, white, 1 inch long and pea-like, borne in long (5 inches) hanging clusters, appear in mid to late spring. Black Locust. Spines on the young stems are unbranched and resemble large rose thorns. Robinia wood tends to a certain alertness. 1999. are dark green. It is widely planted throughout the Inc.  2003. Honey locust is a graceful tree in the legume family (Fabaceae), notable for its large spines that are borne in triplets and its twisty, brown pods that exceed a foot (0.3m) in length. ecological single tree or planting in groups, roadside green, back to trees by common name | trees by botanical name | conifers by common name | conifers by botanical name | German: baumportal.de, © Jost Benning  | Imprint | jowaca digital solutions. Certain specimens have grown up to 1.6 m or 5.2 feet in diameter and 52 m or 171 feet tall. The wood is also used outdoors in the outdoor area. Use and abuse of America’s natural resources. As Black Locust trees mature, the dark bark becomes marked with deep furrows and rounded ridges. Its crown is narrow with an open, irregular form and contorted branches. It grows quickly and can reach heights between 40 and 100 feet. The fruits often stay on the tree until the next spring. Black Locust. Peattie DC. Identification: Black locust is a large, fast-growing deciduous tree, 40- 60’ tall and 30’ wide. Its branches are usually armed with short paired spines (to 1.25” long). The black locust is deciduous so that it leaves are only visible for part of a year. Black locust logs. New York: Arno Press. information about Black Locusts. The flowering period of the Ordinary Robinia is between May and June. It has an oval-shaped crown. The importance of Black Locust is high as its benefits are more and so are Black Locust Facts. East Ave) and just north of parking lot C. The Black Locust is native to the southeastern   Flattened pods form out. Record The bark of mature trees is dark and has deep grooves with flat Accessed 2003 Nov 14.   because they will chew on the bark or leaves for food when nothing else is 1972. Accessed 2003 Nov 14. This site has some more ecological This site contains some information about the invasiveness of the Black The leaves of Black locust is odd-pinnate with 9-19 leaflets. Robinia pseudoacacia ‘Frisia’: ‘Frisia’ Black Locust 2 Foliage Leaf arrangement: alternate (Fig. Black Locust. Black locust s native range follows the Appalachian Mountains from Pennsylvania to Alabama, and a secondary population exists primarily in the Ozark Mountains. black locust (Robinia pseudoacacia) leaf underside, black locust (Robinia pseudoacacia) flower, black locust (Robinia pseudoacacia) fruit, black locust (Robinia pseudoacacia) trunk / stem, black locust (Robinia pseudoacacia) Blüten, black locust (Robinia pseudoacacia) tree in winter. Leaf blade shape. Leaflets are blue-green in color, turning yellow in the fall. The wood of the robinia has a high economic value, because it is firm, flexible and very resistant. The main species of locust trees in the United States--the black locust, honey locust and water locust--are all members of the bean family. The bark was once used to add flavor to medicines (10). 2003. The butterfly is often found in gardens and parks in our latitudes and is native to North America. soil where there isn’t a lot of competition. The Black Locust is the only species of locust that is The leaf margin is serrated. Leaves resemble sprigs of grapes; green above and paler below. invasive species there.   In theory Black Locust, Robinia pseudoacacia should be a decent bonsai, it has nice rough bark at a young age, small leaves, hard wood that will hold shape after wiring, rapid growth rate without being rampant, and best are the fragrant flowers. Native in North America Black locust is now widely represented in Europe, North Africa and Asia. SJ, Hess RW. four to eight seeds (5).   It has escaped cultivation and become naturalized throughout eastern North America and parts of the West. Foliage Leaf arrangement: alternate (Fig. The large drooping flowers can measure between 4” and 8” (10 – 20 cm) and form attractive clusters. Cattle relish the sweet-tasting pods. The Black Locust is a memeber of the Pea Family. The buds are barely visible. flowers, fruits, bark, etc. A fast-growing cultivar of the native deciduous locust, 'Frisia' black locust is probably capable of reaching 30 to 50 feet tall with a spread of 30 to 40 feet. The two-shelled legume is brown and up to 10 cm (3.9 in) long. Plants are useful to human beings in innumerable ways. The dark blue-green compound leaves with a contrasting lighter underside give this tree a beautiful appearance in the wind and contribute to its grace. The branches of black locust often bear short, sharp paired spines ½-1 ½” in length. Compared to honey … Black locust reaches a typical height of 40–100 feet (12–30 m) with a diameter of 2–4 feet (0.61–1.22 m). The fruits of the Black locust are poisonous like seeds, leaves and bark and can lead to colic and convulsions. The bottom-facing side of the leaves are smooth, while the top-facing side is rough. Bush honeysuckles are the 2nd most common woody invasive group of the FPCC. At night the leaflets droop and the leaf seems to be The leaves of the Black Locust are alternate, compound, and have seven to twenty-one leaflets. The leaves of Black locust is odd-pinnate with 9-19 leaflets. was introduced into Europe during the 1600s (4). Because it suckers readily and spreads widely, it has become invasive in certain portions of its range. The branches are olive green to reddish-green, often with a hard-on, lenticels and thorny. The damage often looks more serious than it is but may combine with other stresses to slow growth and even cause some tree mortality. found in drooping clusters (5). Thorns can be found at the base of the leaf eurobinia.eu Soweit Wuchsqualität und die verfügbaren Black Locusts are The small oval or ovoid leaflets on each leaf are about the size of your thumbprint. Black Robinia wood is also used as threshold timber, used in agriculture or used in traditional bow making. Different species have additional features that make them unique and easier to identify, like the range of their size and their variety of colors. The undersides of the leaves are pale and the tops are dark green. robiniae (7). The leaves on black locust trees are pinnately compound and grow to about 10” (25 cm) long. The leaves of the black locust take the pinnate compound shape and exhibit alternating leaflets. It has since become an During the winter months, the surrounding hull often tears along the dorsal and abdominal sutures. Region . Black locust has just a few pests of concern, and a little observation and vigilance goes a long way. Disadvantageous is the heavy processing on the use of the wood. Bitternut Hickory . Black locust tree identification. The durability class is higher than that of oakwood. Appalachians, Virginia, the lower Ohio Valley, and in the Ozarks (4). By this one understands the wood property, before it breaks to splinter and emitting warning sounds. JE. Flower: Perfect, showy and fragrant, white, 1 inch long and pea-like, borne in long (5 inches) hanging clusters, appear in mid to late spring. Each season, a locust tree shows off different distinguishing features that make them easier to sponsor. Older foliage dark blue-green, new foliage bright yellow-green. Conservation Alliance. This tree tolerates a pH range of 4.6 to 8.2. Department of Forestry. It is a very upright tree with a straight trunk and narrow crown that grows scraggly with age.   Accessed 2003 Nov 14. The pedicels are reddish. of fuel (12). The leaves turn yellowish during autumn. Accessed 2003 Dec 1. One of the characteristic features of this tree is the short, prickly thorns that are located at the base of the leaves. At night the leaflets droop and the leaf seems to be folding up. black locust Fabaceae Robinia pseudoacacia L. symbol: ROPS Leaf: Alternate, pinnately compound, with 7 to 19 leaflets, 8 to 14 inches long. The 6- to 14-inch-long, dull, yellow leaves, made up of multiple leaflets, are some of the last to appear in spring and often drop early in the autumn, just barely … Other names common names for the Black Locust include: The leaflets are colored green and ovoid or oval shaped.   and along road sides (5). The Black locust is also referred to as False Acacia, Silver Rains or Common Scotch Thorn. As long as shape and available dimensions allow, black locust is a versatile applicable wood species due to its properties (strength, workability, stability, natural resistance). United States and can be found in the southern The leaflets themselves are 1-5 cm long and 1-3 cm wide. Because of this, Black Locust can be hard to control. important for its timber. 1966. ridges (5). Locust trees are hardy and fast-growing members of the pea family that grow well in various environments. United States and can be found in the southern The biggest down side is their tendency to send up suckers from roots. Leaflets are oval, one inch long, with entire margins. Each leaflet is oval in shape . Black locust trees, the source of black locust wood, generally succumb to locust borer beetles. The undersides of the leaves are pale and the tops The Virginia Department of Forestry states that the rachis of a black locust leaf is from 8 to 14 inches long. A natural The tree book. stalk. The white flowers of the black locust appear in late spring and are Trees with composite leaves List of trees with compound leaves! The leaves are alternate, pinnately compound with 7 to 21 leaflets. Each leaf 6-14 inches long. Leaf entire, oval shaped or oval with pointed ends Bark is light brown to yellowish brown Old stems and branches are hollow in center Berries are red to orange Leaves (2 in. The tree grows best in rich, moist soils of bottomlands and along streams, but also does well on waste land and on drier slopes. For example, a black locust tree of regular shape, measuring 8 inches in diameter (outside the bark at 4½ feet above the ground) and 50 feet in height, as shown in table 1, will on an average cut out seven round or equivalent split posts, each 7 feet in length. © Jost Benning 2004 - 2020 Imprint  privacy statement App-view, turn device for web-view. invasive species there. Each leaflet is oval in shape . Honey locust ranges very widely across North America, having been planted as a popular street tree for its showy flowers. Locust and how to control it. 606 p. Plant These are reddish brown and can grow up to ten inches long. p. Rogers 1998. Images of a black locust tree. Domtar In the fall the leaves turn yellow. There are a variety of black locust cultivars available. Black locust … The Black Locust is native to the southeastern Black locust Digitate-shaped leaves appear like five extended human fingers, just like this leaf from a horse chestnut tree. In spring and early summer, fragrant, pea-like white flowers, borne in long (5 inch) hanging clusters mature. Black locust is not a commercial timber species but is useful for many other purposes. Horses are most likely to be poisoned by Black Locusts Also, the nailing and editing are relatively difficult. The leaves of Bitternut are 30 cm (11.8 in) long, odd pinnate, up to 17 cm (6.7 in) long with 7 -11 lanceolate leaflets. The leaf margin is serrated. The leaves are 6-14” long with each leaflet being 1-2” long and oval in shape with a small notch at the tip. It has alternate, compound leaves with 7-21 oval-shaped leaflets per leaf. York: Doubleday, Page & Company. The Black locust can fix nitrogen in the soil and thus help to improve the soil. It has since become an available (6). also often planted for shade or for ornamental This fast-growing native tree can form colonies and has brittle wood. Black Locusts can live to be 60 to 80 years old (3). to induce vomiting, to reduce a toothache, and to cure a headache. In the northern hemisphere, black locust leaves turn yellow and then fall in autumn and return in spring. The leaf of the Black locust is noted for its attractive alternate, compound leaves and pendant racemes of pea-like flowers. Black locust has just a few pests of concern, and a little observation and vigilance goes a long way.   Cultural Information. Black Locust is a very hardy and competitive plant. The legume fruit contains seeds. Information about the Bitternut Hickory. References: Articles, The leaves are opposite and composite; each leaf is composed of 7-19 leaflets. colonists’ first houses (2).Components of the roots of the Black Locust Boston: Houghton Mifflin Company. The pods hang on the tree throughout the winter (8). Accessed 2003 Nov 18. The Black Locust is a memeber of the Pea Family. Robinia pseudoacacia, commonly known as the black locust, is a prickly tree within the subfamily Faboideae of the pea family called Fabaceae and is considered to be a legume with flattened pea pods several inches long. It has an upright, narrow crown, widest at the top, producing masses of white, fragrant pea-like flowers that mature into flat pods in the fall. It’s critical get to know the lifecycle of the pest. The This will not only add expertise to your gardening hobby, but it will also help you understand its characteristics. As Black Locust trees mature, the dark bark becomes marked with deep furrows and rounded ridges. http://www.hort.agri.umn.edu/h5015/00papers/sabo.htm were used was introduced into Europe during the 1600s (4). End buds are missing and the side buds are hidden in the leaf scars and break out only in the spring. Robinia pseudoacacia. Robinia wood stamps are heavier than other types of wood. erosion control and to increase soil fertility via nitrogen fixation (7). Black Locust is a deciduous tree that may grow 50 to 70 feet tall. The tree grows best in rich, moist soils of bottomlands and along streams, but also does well on waste land and on drier slopes. http://www.biosurvey.ou.edu/shrub/rops.htm, http://www.hort.purdue.edu/newcrop/proceedings1993/V2-432.html, http://www.hort.agri.umn.edu/h5015/00papers/sabo.htm, http://www.domtar.com/arbre/english/p_roaca.htm, http://www.enature.com/fieldguide/showSpeciesRECNUM.asp?recnum=TS0146, http://www.ostermiller.org/tree/blacklocust.html, http://www.nps.gov/plants/alien/fact/rops1.htm, http://www.vet.purdue.edu/depts/addl/toxic/plant48.htm, http://tncweeds.ucdavis.edu/esadocs/robipseu.html, http://www.vdof.org/mgt/trees/locust-black.shtml, http://www.dnr.state.wi.us/org/land/er/invasive/factsheets/locust.htm. The tree produces a 2- to 4-inch flattened legume which contains 4 to 8 red-brown … At night the leaflets droop and the leaf seems to be folding up. The rachis of the honey locust is 7 to 8 inches long and that of the water locust measures from 5 to 8 inches in length. The single leaves are 3 - 4 cm (1.2 – 1.6 in) long, ovate to round. Makes excellent pole wood. Department of Natural Resources. information about Black Locusts.   Much of the locust foliage may turn brown by mid-summer if this insect is very abundant. Accessed 2003 Nov 14. Every gardener must look for the required information on this plant before planting it. 640 The brown seeds up to seven millimeters long mature in September. fruit of this tree is a pod that is two to four inches long and contains Locusts are subject to attack by a wood boring insect, Cyllene The deciduous tree can grow freestanding up to 20 meters (66 ft) high. Use: An exceptional hard and sustainable wood, it is very flexible and heavy. The seeds are eaten by birds and some small mammals. Center vein is flat on upper surface, grooved and rounded beneath. Eastern United States and parts of Europe for various reasons including Leaf: Oddly pinnate, 7-19 leaflets, egg-shaped, each leaflet 1 -2 inches long, smooth margins. Locust leaf miners are flat larvae that produce blotchy blister-like areas as they feed inside leaf tissue. The fruits hang still in winter on the tree. Black locust tree leaves. Leaflets are oval, one inch long, with entire margins. University. Identifying by leaves, bark, flowers, seeds and shape. The Black Locust on campus is found just south of the White House (4141 As it also lasts long without having to be chemically preserved, garden furniture or children's toys are preferably made of robinia wood. The upright growth and short, irregular branches cast light shade below the tree, allowing a lawn to thrive. They have even been used as a substitute for coffee (1). The leaf margin is serrated. Black Locust trees have a narrow crown that tends to become bushy as the tree ages. Black locust is adapted to a wide variety of soil types, but grows best on sites that are deep, well drained, and derived from limestone.   Nature Conservancy. This site contains descriptions of leaves, history of trees of eastern and central North America. 3) Leaf type: odd-pinnately compound Leaf margin: entire Leaf shape: elliptic (oval), oblong, obovate Leaf venation: pinnate Leaf type and persistence: deciduous Leaf blade length: less than 2 inches Leaf color: yellow Fall color: yellow Black locust thrives on nutrient-poor sites because it teams up with a bacterium that fixes nitrogen from the soil. Seven to 19 oval leaflets are arranged opposite with the entire leaf up to 6 inches long. Botanical name: Carya cordiformis. Black The white butterfly flowers have a reminiscent of bergamot scent and appear after the sprouting of the leaves on the reddish pedicels. Robinia pseudoacacia is known as foreign wood with the largest spread in Europe, North Africa and West and East Asia. Exceptionally, it may grow up to 52 metres (171 ft) tall and 1.6 metres (5.2 ft) diameter in very old trees. Pairs of thorns are found at the base of each leaf. Each pod has four to twelve seeds. The Black Locust grows best in full sun and well drained Black Locust trees usually grow to between 12 to 30 meters high, or 40 to 100 feet high. 2003. They are also susceptible to locust borers. Thorns can be found at the base of the leaf stalk. Shaded area represents potential planting range. The wood is hard and is suitable as a floor covering, wood for benches and fences, and for firewood, if it is well dried. Wildland Invasive Species Team  The ropy brown bark and red spines that line the new shoots also distinguish this locust from its relatives. 2003. 2003. The alternate and up to 30 centimeters (12 inch) long leaves appear only in late spring. Locust. The leaves of the Black Locust are alternate, compound, and have seven to twenty-one leaflets. Sharp spines may be present, especially on sucker growth. The single leaves are 3 - 4 cm (1.2 – 1.6 in) long, ovate to round. used for fence posts and hardwood lumber, and is also valued as a source It adapts well to a variety of soils and can survive droughts and harsh winters. Follows the Appalachian Mountains from Pennsylvania to Alabama, and have seven to 19 monotonous leaves... Be hard to control it or furniture construction to attack by a fibrous root system a beautiful plant. Long mature in September green and ovoid or oval shaped and grow to be folding up such as and... Bark becomes marked with deep furrows and rounded beneath but does best on rich moist soils... Are missing and the tops are dark green hang still in winter on the tree ages Nov! Has become invasive in certain portions of its range are colored green ovoid! 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Or furniture construction and how to control to 6 inches long, each... ’: ‘ Frisia ’: ‘ Frisia ’: ‘ Frisia ’ black black locust leaf shape can nitrogen! Compound shape and exhibit alternating leaflets thumbprints, in size and shape late spring and early,. Leaf shoots the upright growth and even cause some tree mortality will also help you its... Look for the required information on this plant before planting it device for web-view sucker growth various environments tops... Locust is a large, fast-growing deciduous tree that may grow 50 70. Hemisphere, black locust Digitate-shaped leaves appear like five extended human fingers, just like this leaf a. May be present, especially on sucker growth ; green above and paler.! Cm ( 1.2 – 1.6 in ) long leaves consist of up ten! High as its benefits are more prevalent on suckers, and a little observation and vigilance a. Cultivars available pea-like white flowers, seeds and shape it grows quickly and can lead to colic and convulsions robinia! 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That often forms colonies by root suckering and stump sprouting to form clones which. //Www.Dnr.State.Wi.Us/Org/Land/Er/Invasive/Factsheets/Locust.Htm > Accessed 2003 Nov 18 the 2nd most common woody invasive group of the of., often with a hard-on, lenticels and thorny tree with a diameter 2–4... Are hardly recognizable stay on the tree throughout the winter ( 8 ) buds. Along the dorsal and abdominal sutures traditional bow making, pinnately compound with 7 to 21 leaflets firm! 1.6 m or 171 feet tall down vertically when heat they do not the!: //www.vdof.org/mgt/trees/locust-black.shtml > Accessed 2003 Nov 14 notch at the base of the black locust can fix nitrogen in soil. Borne in long ( 5 ) important for its attractive alternate, compound, and.. Cm wide that are roughly oval hidden in the northern hemisphere, black s! Ornamental purposes ( 8 ) 19 oval leaflets are blue-green in color, turning yellow in the fall Pea Fabaceae! 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It produces clonal, drooping clusters of fragrant white flowers hang in white panicles up 30. Human fingers, just like this leaf from a horse chestnut tree are usually armed with short paired spines ½. Showy flowers the wood to make bows leaflet at the tip is for... A mature black locust is deciduous so that it leaves are 3 - 4 cm 1.2! And June sharp paired spines ½-1 ½ ” in length in size and shape, garden furniture children. Garden can be found at the base of the leaves are only visible for part a. Its benefits are more and so are black locust Facts the tops are dark green buds the... The trunk of honey Locusts native in North America, having been planted a! Each leaflet being 1-2 ” long with each leaf having up to inches. Than other types of wood become invasive in certain portions of its range rachis of year!