Expandindo a distribuição geográfica de Hibiscus sabdariffa L. (Malvaceae): uma espécie naturalizada e negligenciada para a flora brasileira

Abstract

RESUMO Hibiscus sabdariffaé uma espécie pantropicalmente distribuída e cultivada devido à sua importância econômica. Possivelmente esta espécie é originária do Sudão, tendo sido, posteriormente, levada para o restante da África, sudeste da Ásia e América Central. Registros da naturalização de H. sabdariffa são conhecidos para a região neotropical, embora no Brasil, ela seja conhecida apenas como cultivada. Apresentamos aqui, casos de naturalização de H. sabdariffa para a flora brasileira baseados em registros prévios e novas coletas realizadas na região Amazônica. Incluem-se, ainda, uma descrição da espécie, chave de identificação para as espécies Amazônicas de Hibiscus, prancha fotográfica e a distribuição geográfica da espécie na região neotropical.

Preliminary Angiosperm Checklist in an Area South of the Madeira River, Manicoré, Amazonas, Brazil

“…For floristic and phytosociological studies, it is only interesting to report the occurrence of exotic species merely cultivated to the site if they are clearly labeled in the study description (Moro et al, 2012) During field expeditions for this work, material from Hibiscus sabdariffa L. was collected from a disturbed area of secondary forest (Figure 3a-b). Coelho and Amorim (2019) found that this fact corresponds to an indication of naturalization of this species in the Brazilian Amazon.…”

“…Prior to the study by Coelho and Amorim (2019), Hibiscus sabdariffa was only recorded as cultivated (Esteves, Duarte & Takeuchi, 2014), being absent from the records of Brazilian angiosperms (BFG, 2015; Hibiscus in Flora do Brasil 2020, under construction). In this checklist, as in the study by Coelho and Amorim (2019), this species is labeled as naturalized and recorded as new occurrence for Brazil (Table 1). In addition to the new occurrences of exotic species, 39 new occurrences of native species were recorded for Amazonas State, eight of which are also new occurrences for the northern region (Table 1).…”

“…In the expeditions carried out in this study, we collected 240 individuals from 63 families, 145 genera, and 202 species (Figure 4). In just 90 h of field sampling, besides finding evidence to prove the naturalization of Hibiscus sabdariffa (Coelho & Amorim, 2019), it was also possible to identify a new species of Mandevilla Lindl. (Apocynaceae) endemic to the southern Amazon region (Coelho et al, in press) (Figure 3c).…”