The main features of the Brazilian contemporary landscape style are the recovery of degraded areas and the useof indigenous species. This study aimed at analyzing the vegetation of the Curitiba-PR public garden squaresto verify if the areas created during the contemporary period (from 1990 on) have a greater diversity of treespecies than other squares and, therefore, are more significant for biodiversity conservation. For this, 32 of thecity's 454 squares were sampled as determined by statistical calculation, then classified by creation year andlandscape style. Trees species, families, and individuals were identified and classified as to their origin; and thevariables richness; average species; number of individuals; density of individuals; and the Shannon, Pielou, andOdum indexes were analyzed. The 15 contemporary style squares presented 399 individuals of 54 species and27 families, with 43.61% of the individuals and 50.00% of the species of exotic origin; individuals average of26.60 ±9.72 per square and 43.09 ±35.13 per hectare; species average of 6.93 ±4.98 per square and 13.95 ±10.63per hectare; and diversity indexes of Shannon 3.39, Pielou 0.85, and Odum 9.02. The squares in thecontemporary style presented higher diversity indexes, but they have, on average, fewer species, families, andindividuals, in addition to a greater proportion of exotic species and individuals. These results indicate thatthese squares did not follow the typical characteristics of the contemporary style and are of no greatersignificance for biodiversity conservation when compared to other squares.
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