FIGURE 3. Lupinus austrorientalis C.P.Sm. A. Isotype at SI showing the label that says "Leg Pablo Güther, Lorentz, Fl. Arg. 464". B. Dissected flowers with banners wider than long, typical of var. austrorientalis & var. umidicola (Planchuelo 958). C. Dissected flowers showing the orbicular banner of var. jujuyensis (Venturi 8163). D. Plant growing in Salta, representative specimen Fabbroni 1754 (MCNS) (Photo Fabbroni). E. Detail of inflorescence. F. Detail of flower showing the wide banner that covers the calyx. G. Portion of stem with semi-appressed long hairs and dense curly short hairs. H. Photo SEM (100 x) showing adaxial face of leaflet covered with long hairs, typical of var. austrorientalis and var. jujuyensis, this later more dense. I. Photo SEM (100 x) showing adaxial face of leaflet glabrous typical of var. umidicola. J. Fresh seed in a pod showing the cream color tegument and angle mark around the hilar region. K. mature seed with darker seed coat and angle mark around the hilar region (Photos Fabbroni).

Published as part of Planchuelo, Ana María, 2022, New varieties and synonyms of Lupinus species (Fabaceae, Faboideae) of Northwestern Argentina, pp. 143-170 in Phytotaxa 566 (2) on page 161, DOI: 10.11646/phytotaxa.566.2.1, http://zenodo.org/record/7119094