Bush clover

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Inflorescence and foliage of L. thunbergii
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Desmodieae
Subtribe: Lespedezinae
Genus: Lespedeza
Michx.
Species

about 40, see text

Lespedeza is a genus of some 40 species (including nothospecies) of flowering plants in the pea family (Fabaceae), commonly known as bush clovers or (particularly East Asian species) Japanese clovers (hagi). The genus is native to warm temperate to subtropical regions of eastern North America, eastern and southern Asia and Australasia.

These shrubby plants or trailing vines belong to the "typical" legumes (Faboideae), with the peas and beans, though they are part of another tribe, the Desmodieae. Therein, they are treated as type genus of the smaller subtribe Lespedezinae, which unites the present genus and its presumed closest relatives, Campylotropis and Kummerowia.

Cultivation and uses

Some species are grown as garden or ornamental plants, and are used as a forage crops, notably in the southern United States, and as a means of soil enrichment and for prevention of erosion. In some areas, certain species are invasive. Lespedeza, like other legumes, have root nodules that harbor bacteria capable of nitrogen fixation from the air into a soil-bound form that can be taken up by other plants. Growers can take advantage of this process by putting the plants in their fields to release nitrogen, so they can use less fertilizer.

L. bicolor leaves and roots contain l-methoxy-N,N-dimethyltryptamine (lespedamin), as well as related Nω,Nω-DMTs and their oxides, as well as some bufotenin.[1]

Species


The species and nothospecies recognized in Lespedeza include:[2]

The identity and specific validity of L. schindleri is unclear.[3] In addition, there are some species formerly in this genus that are now placed elsewhere, typically in the Lespedezinae, for example, in genus Campylotropis. These include:[4]

  • Lespedeza speciosa Schindl. = Campylotropis speciosa (Schindl.) Schindl.
  • Lespedeza striata (Thunb.) Hook. & Arn. = Kummerowia striata (Thunb.) Schindl.
  • Lespedeza tomentosa Maxim. = Campylotropis pinetorum (Kurz) Schindl.

Footnotes

References

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  • International Legume Database & Information Service (ILDIS) (2005): . Version 10.01, November 2005. Retrieved 2011-FEB-18.
  • Morimoto, Hiroshi & Matsumoto, Norichika (1966). Über Alkaloide, VI. Inhaltsstoffe Lespedeza bicolor var. japonica, II. ["Alkaloid contents of L. bicolor var. japonica II."] 10.1002/jlac.19666920122 (HTML abstract)
  • Morimoto, Hiroshi & Oshio, Haruji (1965). Über Alkaloide, V. Inhaltsstoffe von Lespedeza bicolor var. japonica, I. Über Lespedamin, ein neues Alkaloid. ["Alkaloid contents of L. bicolor var. japonica I. On Lespedamin, a novel alkaloid."] 10.1002/jlac.19656820121 (HTML abstract)

External links

  • UNT Government Documents Department
  • . USDA NRCS.
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