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Lagerstroemia //, commonly known as crape myrtle or crepe myrtle, is a genus of around 50 species of deciduous and evergreen trees and shrubs native to the Indian subcontinent, southeast Asia, northern Australia and parts of Oceania, cultivated in warmer climates around the world. It is a member of the Lythraceae, which are also known as the loosestrife family. The genus is named after the Swedish merchant Magnus von Lagerström, who supplied Carolus Linnaeus with plants he collected. These flowering trees are beautifully colored and are often planted both privately and commercially.
Crape myrtles are chiefly known for their colorful and long-lasting flowers which occur in summer months. Most species of Lagerstroemia have sinewy, fluted stems and branches with a mottled appearance that arises from having bark that sheds throughout the year. The leaves are opposite and simple, with entire margins, and vary from 5–20 cm (2–8 in). While all species are woody in nature, they can range in height from over 100 feet to under one foot; most, however, are small to medium multiple-trunked trees and shrubs. The leaves of temperate species provide autumn color.
Flowers are borne in summer and autumn in panicles of crinkled flowers with a crepe-like texture. Colors vary from deep purple to red to white, with almost every shade in between. Although no blue-flowered varieties exist, the flowers trend toward the blue end of the spectrum with no orange or yellow except in stamens and pistils. The fruit is a capsule, green and succulent at first, then ripening to dark brown or black dryness. It splits along six or seven lines, producing teeth much like those of the calyx, and releases numerous, small, winged seeds.
In their respective climates, both subtropical and tropical species are common in domestic and commercial landscapes. The timber of some species has been used to manufacture bridges, furniture, and railway sleepers, but in Vietnam's Cat Tien National Park, the dominant stands of Lagerstroemia calyculata in secondary forest are thought to have survived (after episodes of logging) due to the low quality of wood. Lagerstroemia species are used as food plants by the larvae of some Lepidoptera (moth and butterfly) species including Endoclita malabaricus.
- Lagerstroemia anhuiensis X.H. Guo & S.B. Zhou
- Lagerstroemia anisontera
- Lagerstroemia balansae
- Lagerstroemia calyculata
- Lagerstroemia caudata
- Lagerstroemia cristata
- Lagerstroemia excelsa
- Lagerstroemia fauriei
- Lagerstroemia floribunda
- Lagerstroemia fordii
- Lagerstroemia glabra
- Lagerstroemia guilinensis
- Lagerstroemia indica
- Lagerstroemia intermedia
- Lagerstroemia langkawiensis
- Lagerstroemia limii Merr.
- Lagerstroemia loudonii
- Lagerstroemia micrantha
- Lagerstroemia minuticarpa
- Lagerstroemia microcarpa
- Lagerstroemia ovalifolia Teijsm. & Binn.
- Lagerstroemia paniculata (Turcz.) S. Vidal
- Lagerstoemia parviflora
- Lagerstroemia siamica
- Lagerstroemia speciosa
- Lagerstroemia stenopetala
- Lagerstroemia subcostata
- Lagerstroemia subsessilifolia
- Lagerstroemia suprareticulata S.K. Lee & L.F. Lau
- Lagerstroemia tomentosa
- Lagerstroemia turbinata Koehne
- Lagerstroemia venusta
- Lagerstroemia villosa
The common crape myrtle (Lagerstroemia indica) from China and Korea was introduced circa 1790 to Charleston, South Carolina, in the United States by the French botanist André Michaux. In the wild, the species is most often found as a multistemmed large shrub, but 200 years of cultivation have resulted in a huge number of cultivars of widely varying characteristics. Today, crape myrtle varieties can fill every landscape need, from tidy street trees to dense barrier hedges to fast-growing dwarf types of less than two feet, which can go from seed to bloom in a season (allowing gardeners in places where the plant is not winter-hardy to still enjoy the intense colors of the frilly flowers). In Europe, crape myrtle is common in the south of France, the Iberian Peninsula and all of Italy; in the United States, it can be seen anywhere south of USDA zone 6, doing best and avoiding fungal diseases in mild climates that are not overly humid, such as inland California and Texas.
While not as widely known, the Japanese crape myrtle, L. fauriei, from central and southern Japan is becoming increasingly important, both as a landscaping plant and as a parent in complex hybrids with L. indica. This species is distinctly tree-like, with colorful deciduous bark and dark green leaves which are more resistant to fungal diseases than are those of its more popular relative. The Japanese name for this tree is saru suberi (猿滑、百日紅?, literally "monkey slip", latter spelling ateji) which refers to the smooth, slippery bark. Flowers are as large as those of L. indica, but are white with only the slightest pink flush appearing in some individuals. Japanese crape myrtle is hardier to cold than many strains of L. indica, a characteristic (along with fungal resistance, tree form and colorful bark) that makes it valuable as genetic material for hybridization. Cultivars available include 'Kiowa', 'Fantasy' and 'Townhouse'.
L. speciosa, known as queen crape myrtle, giant crape myrtle, or banabá, originates in subtropical and tropical India. It can be grown in any similar climate, but in the United States is suitable only for southern Florida, southernmost Texas, southern California, and Hawaii. It is a large evergreen tree with colorful rosy-mauve flowers and striking white bark, suitable for public parks and avenues; only the seed-grown species is commonly available for sale, unlike L. indica and L. fauriei, which have dozens of cultivars.
- "Lagerstroemia". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
- Flora of China: Lagerstroemia species list
- Flowers: Can Tho University
- Flora, The Gardeners' Bible, ABC Publishing, Ultimo, NSW, Australia, 2006
- Sunset Western Garden Book, 1995:606–607
- Woodworkers Source: Pyinma.
- Blanc L, Maury-Lechon G, Pascal J-P (2000) Structure, floristic composition and natural regeneration in the forests of Cat Tien National Park, Vietnam: an analysis of the successional trends. Journal of Biogeography, 27: 141–157.
- "Non-wood forest products In 15 countries of Tropical Asia". fao.org. Retrieved 30 January 2012.
- "Trees: Lagerstroemia fauriei". www.ces.ncsu.edu. Retrieved 2008-01-07.
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