International Succulent IntroductionsPlant Introductions of the Huntington Botanical Gardens(published in the Cactus and Succulent Journal)Vol. 79 (2), March - April, 2007 | |
| ISI 2007-28. Obetia ficifolia Wedd. ex. Baker |
More photos available: [
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This pachycaulous succulent is one of the more benign members of the stinging nettle family (Urticaceae). I have only managed to find with the back of my hand one or two of the stinging hairs rarely produced on the underside of the leaf petiole. The elegant, dark-green leaves are palmately lobed and have a rugose surface, while the gracefully tapered trunks have an attractively patterned bark. The species is endemic to Réunion Island, near Madagascar, and comes in two forms – the southern form offered here has larger leaves and is nearly devoid of stinging hairs. According to Clément Duret of the Jardin Botanique in Réunion, the species is critically endangered; fewer than 250 mature individuals are estimated to survive (with no subpopulation containing more than 50). See Bradleya 22:43-52, 2004. Among the significant threats to its survival are urban and agricultural encroachment, the introduced African snail, Achatina fulica, which displays a preference for seedling obetias over other food plants, and competition from invasive exotics. A consequence of the endangered status of O. ficifolia is the even greater rarity of Salamis augustina (see http://www.chez.com/guillermet/salamis.htm), a butterfly for which O. ficifolia is the only larval food source. We offer seedlings of HBG 72906, a plant whose precise origin is uncertain but apparently the form from southern Réunion Island where the species grows in association with Delosperma napiforme (ISI 2005-17). $7.50. |
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