Portulacaria
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Portulacaria
| Portulacaria | |
|---|---|
 |
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| Portulacaria afra | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Core eudicots |
| Order: | Caryophyllales |
| Family: | Portulacaceae |
| Genus: | Portulacaria Jacq. |
Portulacaria is a plant genus previously placed in the family Portulacaceae, but according to molecular studies is part of Didiereaceae.
Species include:
- Portulacaria afra Jacq.
- Portulacaria armiana E. J. Van Jaarsveld
- Portulacaria namaquensis Sond.
- Portulacaria pygmaea Pillans
- Portulacaria oleracea (or Portulaca oleracea), also known as Common Purslane, Summer Purslane, Verdelagas, Pigweed, Little Hogweed or Pusley, is a succulent with silver dollar-sized, Jade Plant-shaped, dark green leaves. It is commonly sold in the southwestern United States as a salad green. Purslane is higher in vitamin E than any other vegetable and contains significant amounts of Vitamins A and C.[1] It normally uses C4 (or Hatch-Slack) carbon fixation but is also able to switch to CAM carbon fixation when drought stressed.[2][3]
References
- ^ Huyser-Honig, Joan. "Purslane". National Gardening Association. http://www.garden.org/subchannels/edibles/herbs/?q=show&id=175&page=1.
- ^ Guralnick, L. J.; Ting, I. P. (1987). "Physiological Changes in Portulacaria afra (L.) Jacq. during a Summer Drought and Rewatering". Plant Physiology 85 (2): 481. doi:10.1104/pp.85.2.481. PMC 1054282. PMID 16665724. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1054282.
- ^ Koch, K. E.; Kennedy, R. A. (1982). "Crassulacean Acid Metabolism in the Succulent C4 Dicot, Portulaca oleracea L Under Natural Environmental Conditions". Plant Physiology 69 (4): 757. doi:10.1104/pp.69.4.757. PMC 426300. PMID 16662291. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=426300.
External links
- Portulacaria afra, the Elephant's Food or Spekboom: a monograph which contains some of the areas of both knowledge and ignorance pertaining to this plant, by Robert J. Baran, 1999-2010
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