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Plantas Trepadeiras no Jardim Botânico de Porto Alegre, Rio Grande do Sul, Brasil: florística e chaves de identificação baseadas em caracteres vegetativos

2021; Fundación Zoobotánica de Rio Grande do Sul; Volume: 76; Linguagem: Inglês

10.21826/2446-82312021v76e2021024

2446-8231

Willian Souza Piovesani, Priscila Porto Alegre Ferreira,

Phytochemistry Medicinal Plant Applications

The Porto Alegre Botanical Garden (JBPA) aims at the conservation of native flora in Rio Grande do Sul and represents one of the main green areas in the city. Through periodic collections, we made a floristic inventory of the naturally occurring climbers in JBPA. For each one of the species, the attributes growth form, climbing mechanism and dispersal syndrome were described. Identification keys for species based on vegetative characters are presented. We recorded 81 species, of which eight are exotic, belonging to 58 genera and 30 families. The three richest families were Apocynaceae, Asteraceae and Convolvulaceae with 11, nine and seven species, respectively. There are 42 herbaceous and 39 woody climbers, of which the most frequent climbing mechanism is the twiner and the dispersal syndrome is the anemochory. The climbing mechanism attribute is associated with growth form, while dispersal syndrome is not. This study highlights that the JBPA shelters 16% of the native climbers in the state, which emphasizes the importance of that small urban green area for the conservation of flora.