Check List 9(5): 973-979, doi: 10.15560/9.5.973
Flora of Brazilian humid Chaco: composition and reproductive phenology
expand article infoTiago Green de Freitas, Camila Silveira de Souza, Camila Aoki, Luan Marcell Mitsuo Arakaki, Thiago Henrique Stefanello, Ângela Lúcia Bagnatori Sartori, Maria Rosângela Sigrist
‡ Universidade Federal de Mato Grosso do Sul, Brazil
Open Access
We present the floristic composition and reproductive phenological data for a remnant of Arborized Stepic Savanna, vegetation type of humid Chaco, Porto Murtinho, Mato Grosso do Sul State, Brazil. We recorded 87 species of 31 families; Leguminosae presented the highest richness (14 species), followed by Malvaceae (9), Cactaceae (7) and Asteraceae (7). The herbaceous layer is relevant in the seasonal studied community (53.5% of the species) and there is predominance of non-perennial species (hemicryptophytes and therophytes), which demonstrate the importance of underground structures or seed banks in the vegetation. The community has continual flowering and fruiting with highest intensity in the rainy season, the most favorable period for plant growth and reproduction. The predominance of autochoric species in relation to anemochoric and zoochoric ones suggests partial independence of seed/fruit dispersal agents. Zoochorous species predominated in the rainy season, whereas anemochorous and autochorous species were more representative in the dry season.