Grazielia

de Souza, Tiago J. T., S, Bordignon, ergio A. L., Apel, Miriam A. & Henriques, Amelia T., 2021, Volatile constituents of Eupatorieae (Asteraceae). Compositional multivariate analysis of volatile oils from Southern Brazilian species in the subtribe Disynaphiinae, Phytochemistry (112734) 186, pp. 1-23 : 2

2.1. Genus Grazielia

Four species of Grazielia were sampled and analyzed in this study. 68 compounds were identified in the VOs obtained from the species in this genus, amounting to 87.6–99.9% of the VOs. All the VOs obtained from the leaves and/or inflorescences of the species in this genus were characterized by the predominance of hydrocarbon monoterpenes (63.8–80.1%) with the same compounds being identified among the major constituents of all the samples. In the VOs obtained from the branches of G. nummularia (Hook. & Arn.) R.M.King & H.Rob a lower percentage of monoterpenes was present.

Two samples of the 0.3–1.5 m tall, low-branched, white-flowered sub-shrub native to Southern Brazil (from Minas Gerais to Rio Grande do Sul)( King and Robinson, 1987; Matzenbacher, 1979)