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Rehmannia
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: (see text)
Genus: Rehmannia
Libosch. ex Fisch. & C.A. Mey.
Species

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.

Contents

Genus

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).

Uses

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 (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.

Synonym

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

Species

  • Rehmannia chingii
  • Rehmannia elata
  • Rehmannia glutinosa - (Gan) Di huang in Chinese (Chinese: (干)地黃)
  • Rehmannia henryi
  • Rehmannia piasezkii
  • Rehmannia solanifolia

References

  1. Oxelman, B.; Kornhall, P.; Olmstead, R.G.; Bremer, B. 2005. Further disintegration of the Scrophulariaceae. Taxon 54 (2): 411-425.
  2. 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 online).
  3. Nutri Herb. "Rehmannia". Nutri Herb: Rehmannia or rehmannia Glutinosa. http://www.nutriherb.net/rehmannia-glutinosa.html. Retrieved 2005-09-06.  
  4. Flora of China: Rehmannia
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Wikispecies

Up to date as of January 23, 2010

From Wikispecies

Taxonavigation

Classification System: APG II (down to family level)

Main Page
Cladus: Eukaryota
Regnum: Plantae
Cladus: Angiospermae
Cladus: Eudicots
Cladus: core eudicots
Cladus: Asterids
Cladus: Euasterids I
Ordo: Lamiales
Familia: Scrophulariaceae
Genus: Rehmannia
Species: R. glutinosa - R. piasezkii

Name

Rehmannia Libosch. ex Fisch. & C.A.Mey.


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