Monographs Details: Pavonia formosa Fryxell
Authority: Fryxell, Paul A. 1999. Cavanilles (Malvaceae). Fl. Neotrop. Monogr. 76: 1-284. (Published by NYBG Press)
Scientific Name:Pavonia formosa Fryxell
Description:Latin Diagnosis - Frútices vel suffrutices, caulibus pube semi-arachnoidea; laminis foliorum ovatis, in axillis venarum principalium et secundarium caespitibus pilos tenuium; floribus axillaribus solitariis, corollis flavis; fructibus 9-10 mm diametro, meri-carpiis valde reticulatis, spinis erectis tribus hamatis 3-5 mm longis, hamulis secus costas lateralas extensis.

Species Description - Shrubs or subshrubs 0.5-2 m tall (or taller if supported on other vegetation), the stems sparsely stellate-pubescent with fragile semi-arachnoid hairs, sometimes also with a few small stellate spicules. Leaf blades ovate, up to 12 x 6 cm, dentate, narrowly acute to acuminate, palmately 5-nerved, the upper surface with sparse stellate hairs <0.5 mm diam., the lower surface with sparse to dense stellate hairs that are somewhat larger and with tufts of fine hairs (domatia?) more or less well developed in the axils of the principal and of the secondary veins; petioles to 4 cm long, the upper side with a dense line of fine hairs, otherwise with scattered, appressed 3-4-armed stellate spicules, these denser toward apex, and/or with arachnoid pubescence like stem; stipules 8-9 mm long, narrowly linear. Flowers solitary in the leaf axils, the pedicels 1-4 cm long, with even pubescence of fine recurved hairs and sometimes also simple hairs 1 mm long; involucellar bracts 6, ligulate to lanceolate, 8-11 x ca. 1.5 mm, more or less ciliate; calyx 6-9 mm long, whitish with green veins, ciliate, the hairs almost 2 mm long; corolla yellow, 20-28 mm long, the genitalia included. Fruits 9-10 mm diam.; mericarps strongly reticulate, the body ca. 5 mm tall, the 3 retrorsely barbed spines erect, 3-5 mm long, the barbs extending down the lateral ribs and less completely the central one, otherwise glabrous.

Discussion:As indicated by its placement in the key, Pavonia formosa is most closely allied to P. narcissi, from which it is separated geographically and probably altitudinally as well as by the characters given in the key.
Distribution:Bolivia South America| Santa Cruz Bolivia South America| Tarija Bolivia South America| Argentina South America| Salta Argentina South America|