| 词条 | Harveya purpurea |
| 释义 |
|image = Harveya purpurea00.jpg |image2 = Harveya purpurea01.jpg |image2_caption = |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Lamiales |familia = Orobanchaceae |genus = Harveya |species = H. purpurea |binomial = Harveya purpurea |binomial_authority = Harv. |synonyms =
}}Harveya purpurea Harv. [1] is an annual herb with large, showy flowers and scale-like leaves, parasitic on the roots of shrubs and trees, endemic to South Africa in the Eastern and Western Cape.[2][3] It occurs from the Cederberg to the Cape Peninsula, and along the coastal belt to Grahamstown in the Eastern Cape, mainly among fynbos, on stony slopes and sandy flats.[4]Harveya species are native to Africa, Madagascar, and Yemen. This species is holoparasitic, that is, entirely nonphotosynthetic, with a preference for members of the Campanulaceae such as Roella and Wahlenbergia. The disabling of the photosynthesis gene has happened independently several times in Scrophulariales.[5][6] References1. ^http://www.theplantlist.org/tpl1.1/record/tro-29203638{{full citation needed|date=December 2017}} 2. ^https://plants.jstor.org/compilation/harveya.purpurea?searchUri={{full citation needed|date=December 2017}} 3. ^http://redlist.sanbi.org/species.php?species=1072-17{{full citation needed|date=December 2017}} 4. ^'Parasitic flowering plants' - Henning Heide-Jørgensen 5. ^{{cite journal |doi=10.1093/oxfordjournals.molbev.a025853 |pmid=9787431 |title=The effect of relaxed functional constraints on the photosynthetic gene rbcL in photosynthetic and nonphotosynthetic parasitic plants |journal=Molecular Biology and Evolution |volume=15 |issue=10 |pages=1243–58 |year=1998 |last1=Wolfe |first1=A. D |last2=Depamphilis |first2=C. W }} 6. ^{{cite journal |doi=10.3732/ajb.92.9.1575 |pmid=21646175 |title=The evolution and expression of RBCL in holoparasitic sister-genera Harveya and Hyobanche (Orobanchaceae) |journal=American Journal of Botany |volume=92 |issue=9 |pages=1575–85 |year=2005 |last1=Randle |first1=C. P |last2=Wolfe |first2=A. D }} External links
2 : Parasitic plants|Harveya |
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