Rehmannia

Rehmannia

Taxobox
name = "Rehmannia"


image_width = 240px
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Lamiales
familia = (see text)
genus = "Rehmannia"
genus_authority = Libosch. ex Fisch. & C.A. Mey.
subdivision_ranks = Species
subdivision = See text

"Rehmannia" is a genus of six species of flowering plants in the order Lamiales, endemic to China.

The genus was included in the family Scrophulariaceae or Gesneriaceae in some older classifications. The current placement of the genus is uncertain; it belongs to neither Scrophulariaceae s.s. nor Plantaginaceae s.l. (to which many other former Scrophulariaceae have been transferred), nor does it seem to belong with any of the other major clades of Lamiales. Molecular studies suggest that its closest relatives are the genera "Lancea" and "Mazus" (Oxelman et al., 2005), which have been included in Phrymaceae (Beardsley & Olmstead, 2002).

Sometimes known as Chinese Foxglove due to its superficial resemblance to the genus "Digitalis", the species of "Rehmannia" are perennial herbs. The plants have large flowers and are grown as ornamental garden plants in Europe and North America, and are used medicinally in Asia. Known as dìhuáng (地黄) or gān dìhuáng () in Chinese, "R. glutinosa" is used as a medicinal herb for a variety of ailments such as anemia, dizziness and constipation. "Rehmannia" contains the vitamins A, B, C, and D, as well as other useful compounds.

The name "Rehmannia" has also been given to a genus of Jurassic ammonites belonging to the Reineckeidae family.

elected species

*"Rehmannia chingii"
*"Rehmannia elata"
*"Rehmannia glutinosa"
*"Rehmannia henryi"
*"Rehmannia piasezkii"
*"Rehmannia solanifolia"

References

*Oxelman, B.; Kornhall, P.; Olmstead, R.G.; Bremer, B. 2005. Further disintegration of the Scrophulariaceae. "Taxon" 54 (2): 411-425.
*Beardsley, P. M. & Olmstead, R. G. 2002. Redefining Phrymaceae: the placement of "Mimulus", tribe Mimuleae, and "Phryma". "American Journal of Botany" 89: 1093-1102 (available [http://www.amjbot.org/cgi/content/full/89/7/1093 online] ).
*cite web | author=Nutri Herb | title=Rehmannia | work=Nutri Herb: Rehmannia or rehmannia Glutinosa | url=http://www.nutriherb.net/rehmannia-glutinosa.html | accessdate=2005-09-06 | accessyear=2004
* [http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=128084 Flora of China: "Rehmannia"]


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  • Chinese herbology — For non Chinese traditions of herbology, see herbalism. Chinese Herbology (simplified Chinese: 中药学; traditional Chinese: 中藥學; pinyin: zhōngyào xué) is the theory of Traditional Chinese herbal therapy, which accounts for the majority of treatments …   Wikipedia

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