Knapp Sandra, Sagona Eva, Carbonell Anna K Z, Chiarini Franco
Department of Life Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom.
Orto Botanico Forestale di Abetone, Associazione Ecomuseo della Montagna Pistoese, Palazzo Achilli, Piazzetta Achilli n. 7 - 51028 Gavinana, Pistoia (PT), Italy.
PhytoKeys. 2017 Aug 7(84):1-104. doi: 10.3897/phytokeys.84.12695. eCollection 2017.
The clade (Elaeagnifolium clade) contains five species of small, often rhizomatous, shrubs from deserts and dry forests in North and South America. Members of the clade were previously classified in sections , and , and were not thought to be closely related. The group is sister to the species-rich monophyletic Old World clade of spiny solanums. The species of the group have an amphitropical distribution, with three species in Mexico and the southwestern United States and three species in Argentina. occurs in both North and South America, and is a noxious invasive weed in dry areas worldwide. Members of the group are highly variable morphologically, and this variability has led to much synonymy, particularly in the widespread . We here review the taxonomic history, morphology, relationships and ecology of these species and provide keys for their identification, descriptions, full synonymy (including designations of lectotypes) and nomenclatural notes. Illustrations, distribution maps and preliminary conservation assessments are provided for all species.
该分支(沙枣叶分支)包含五种小型灌木,通常具根状茎,分布于北美洲和南美洲的沙漠及干燥森林中。该分支的成员先前被归类于不同的组,且不被认为有密切的亲缘关系。该类群是物种丰富的旧世界单系多刺茄分支的姐妹群。该类群的物种具有两半球分布,其中三种分布于墨西哥和美国西南部,三种分布于阿根廷。 在北美洲和南美洲均有分布,并且是全球干旱地区的一种有害入侵杂草。该类群的成员在形态上高度可变,这种变异性导致了许多异名,特别是在分布广泛的 中。我们在此回顾这些物种的分类历史、形态、亲缘关系和生态学,并提供其鉴定检索表、描述、完整异名(包括选定模式)和命名注释。为所有物种提供了插图、分布图和初步保护评估。