Difference between revisions of "Mimosa"
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| + | Mimosa (Greek, a mimic, alluding to the fact that the leaves of some species are sensitive). Leguminbsae. Woody or herbaceous plants, mostly tropical, grown for the showy flowers or feathery foliage; of some species the leaves are sensitive. What the florists know as mimosas are acacias (chiefly A. arrnata). | ||
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| + | Trees, shrubs or herbs of varying habit (sometimes woody climbers), mostly thorny or prickly, with bipinnate often sensitive lvs. (sometimes the lvs. reduced to phyllodia): fls. not papilionaceous, in close heads or head-like spikes, usually with 4 or 5 united petals, and a minute or obsolete calyx; stamens 4-10, exserted; pollen granular: pod flat, oblong or linear, breaking up into 1-seeded joints when ripe. Mimosa has stamens 10 or less (once or twice as many as the petals); Acacia has numerous stamens.—Of Mimosas there are probably 300 species, chiefly of Trop. Amer. A number of the bushy species, and the small trees, are planted more or less in warm countries for ornament. They require the treatment given the woody acacias. | ||
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:''For other uses, see [[Mimosa (disambiguation)]].'' | :''For other uses, see [[Mimosa (disambiguation)]].'' | ||
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Revision as of 12:20, 6 January 2010
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Mimosa > |
This is the plant information box - for information on light; water; zones; height; etc. If it is mostly empty you can help grow this page by clicking on the edit tab and filling in the blanks!"This is the plant information box - for information on light; water; zones; height; etc. If it is mostly empty you can help grow this page by clicking on the edit tab and filling in the blanks!" is not in the list (If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!) of allowed values for the "Jump in" property.
Read about Mimosa in the Standard Cyclopedia of Horticulture
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Mimosa (Greek, a mimic, alluding to the fact that the leaves of some species are sensitive). Leguminbsae. Woody or herbaceous plants, mostly tropical, grown for the showy flowers or feathery foliage; of some species the leaves are sensitive. What the florists know as mimosas are acacias (chiefly A. arrnata). Trees, shrubs or herbs of varying habit (sometimes woody climbers), mostly thorny or prickly, with bipinnate often sensitive lvs. (sometimes the lvs. reduced to phyllodia): fls. not papilionaceous, in close heads or head-like spikes, usually with 4 or 5 united petals, and a minute or obsolete calyx; stamens 4-10, exserted; pollen granular: pod flat, oblong or linear, breaking up into 1-seeded joints when ripe. Mimosa has stamens 10 or less (once or twice as many as the petals); Acacia has numerous stamens.—Of Mimosas there are probably 300 species, chiefly of Trop. Amer. A number of the bushy species, and the small trees, are planted more or less in warm countries for ornament. They require the treatment given the woody acacias.
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- For other uses, see Mimosa (disambiguation).
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 Mimosa pudica foliage and flower-head | ||||||||||||||
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| *Mimosa diplotricha
and about 400 other species. |
Mimosa is a genus of about 400 species of herbs and shrubs, in the subfamily Mimosoideae of the legume family Fabaceae. The most curious plant in the genus is Mimosa pudica or sleeping grass because of the way it folds its leaves down when touched or exposed to heat; many others also fold their leaves in the evening. It is native to southern Mexico, Uruguay and Central America but is widely cultivated elsewhere for its curiosity value, both as an indoor plant in temperate areas, and outdoors in the tropics. Outdoor cultivation has led to weedy invasion in some areas, notably Hawaii.
Members of this genus are among the few plants capable of rapid movement; examples outside of Mimosa include the Telegraph plant, and the Venus Flytrap.
The genus Mimosa has had a tortuous history, having gone through periods of splitting and lumping, ultimately accumulating over 3,000 names, many of which have either been synonymized under other species or transferred to other genera. In part due to these changing circumscriptions, the name "Mimosa" has also been applied to several other related species with similar pinnate or bipinnate leaves but now classified in other genera, most commonly to Albizia julibrissin (Silk Tree) and Acacia dealbata (Silver Wattle).
In Russia, Italy and other countries it is customary to present women with yellow mimosas (among other flowers) on International Women's Day (March 8). This flower is from the Acacia dealbata (Silver Wattle), which is not a true Mimosa.
References
- Barneby, R.C. 1992. Sensitivae Censitae: A description of the genus Mimosa Linnaeus (Mimosaceae) in the New World. Memoirs of the New York Botanical Garden, vol. 65.
