High richness, new occurrences, and threatened species in a savanna grassland remnant in the largest Brazilian metropolis Author Camargo Keller, Victor Author Lopes Pereira-Silva, Erico Fernando Author Hardt, Elisa text Check List 2021 2021-03-16 17 2 507 549 http://dx.doi.org/10.15560/17.2.507 journal article 10.15560/17.2.507 1809-127X Mesosetum ferrugineum (Trin.) Chase Figure 19A Identification. Perennial tussock grass, 30–70 cm height. Leaf-blades linear to linear-lanceolate, hairy on both sides, 8–24 cm long, 0.15–3.0 cm wide, ligulate. Characterized by its inflorescence with a single branch, 5–10 cm long, with spikelets covered with ferruginous trichomes. Remarks. Less frequent species, occurring sparsely on the native grassland on dry soils. Considered Endangered in São Paulo state . Brazilian range. Midwest (except MS state), Northeast (BA state), South ( PR state ) and Southeast (except ES and RJ states) regions. Materials examined. BRAZIL – São Paulo • Franco da Rocha , Parque Estadual do Juquery ; 23°20′17″S , 046°41′40″W ; 4 Nov. 2016 ; collection number vck6; HU- FABC1885 • same collection data as for preceding; collection number vck12; HUFABC1878 .