| 词条 | Wigandia caracasana |
| 释义 |
|image = 200410 Wiganda caracasana.JPG |genus = Wigandia |species = caracasana |authority = Kunth }}Wigandia caracasana, the Caracus wigandia, is a species of ornamental plant. It is an evergreen that grows to a height of up to 3 metres (10 ft). It has purple flowers in large clusters from spring to autumn. Some sources treat it as a variety of the species Wigandia urens. Native to Central America, it is thought to be naturalized in southern California as a garden escape. It is commonly grown in gardens, and thrives best in a mixture of loam and peat. Cuttings in sand will strike if placed under glass and in heat.[1] The caracus wigandia can cause severe contact dermatitis.[2] A substance that it secretes, 2,3-dimethoxy-geranyl- 1,4-benzoquinone (consisting of a quinonoid ring with a 10 or 11 carbon-membered side chain) is a remarkably strong sensitizer, which is found nowhere else in the plant kingdom. It has been described as approximating an "ideal allergen".[3] References1. ^{{cite book | author=Pink, A. | url=http://www.gutenberg.org/etext/11892|title=Gardening for the Million| year=2004 | publisher=Project Gutenberg Literary Archive Foundation}} 2. ^{{cite journal | pmc = 1657835 | pmid=18741724 | volume=34 | title=DERMATITIS VENENATA DUE TO WIGANDIA CARACASANA: A HITHERTO UNRECOGNIZED CAUSE: REPORT OF CASE | journal=Cal West Med | pages=278–9 | last1 = Anderson | first1 = NP | last2 = Ayres | first2 = S}} 3. ^{{cite journal | last1 = Hausen | first1 = B. M. | last2 = Heitsch | first2 = H. | last3 = Borrmann | first3 = B. | last4 = Koch | first4 = D. | last5 = Rathmann | first5 = R. | last6 = Richter | first6 = B. | last7 = Konig | first7 = W. A. | year = 1995 | title = Structure-activity-relationships in allergic contact-dermatitis: 1. Studies on the influence of side-chain length with derivatives of primin | url = | journal = Contact Dermatitis | volume = 33 | issue = | pages = 12–16 | doi=10.1111/j.1600-0536.1995.tb00440.x}} Further reading
External links
1 : Hydrophylloideae |
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