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Issue: Vol. 755 No. 2: 8 May 2026
Type: Article
Published: 2026-05-08
DOI: 10.11646/phytotaxa.755.2.7
Page range: 235-244
Abstract views: 0
PDF downloaded: 0

Solanum altoserranum (Solanaceae): a new species endemic from high-altitude grasslands of North-western Argentina

Instituto de Taxonomía Fanerogámica y Palinología; Área Botánica; Fundación Miguel Lillo (FML); Miguel Lillo 251; T4000JFE San Miguel de Tucumán; Argentina
Instituto Criptogámico; Área Botánica; Fundación Miguel Lillo (FML); Miguel Lillo 251; T4000JFE San Miguel de Tucumán; Argentina; Grupo GIVE; Departamento de Ciencias Naturales; Facultad de Ciencias Exactas; Físico-Químicas y Naturales; Instituto ICBIA (UNRC-CONICET); Universidad Nacional de Río Cuarto; Ruta 36 km 601; X5804ZAB Río Cuarto; Córdoba; Argentina
Argentina Dulcamaroid endemism Neotropics Solanales Yungas Eudicots

Abstract

Solanum altoserranum, a new species restricted to the high-altitude grasslands of the Calilegua and Santa Ana mountain ranges, Sub-Andean mountain system, from North-western Argentina in the altitudinal range that oscillates between 2600 and 3600 m a.s.l., is described and illustrated. The new taxon is characterized by having erect stems warty from prominent leaf bases and uniseriate, simple, eglandular, antrorse-appressed trichomes, purplish-green petioles up to 1 cm long., simple leaves with elliptic to oblong, patent, shiny lamina, purple on the abaxial surface, with notable venation that gives it a bullate appearance, apparently lateral inflorescences with 10–20 flowers, articulated pedicels, deflexed, 0.7–1 cm long, campanulate corolla, greenish-white at the base and lilac distally. Photographs, distribution information, conservation status assessment, and comparisons with similar species are also provided.

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How to Cite

Bulacio, E. & Arana, M.D. (2026) Solanum altoserranum (Solanaceae): a new species endemic from high-altitude grasslands of North-western Argentina. Phytotaxa 755 (2): 235–244. https://doi.org/10.11646/phytotaxa.755.2.7