[1.10] Viola sect. Triflabellium

Viola sect. Triflabellium J.M. Watson, A.R. Flores & Marcussen,

in Watson et al., Viola Subg. Andinium: 193. 2021

Type species: Viola triflabellata W. Becker, Repert. Spec. Nov. Regni Veg. 21: 357. 1925.

Diagnostic characters.—Perennial rosette-forming herbs. Style crest as one apical and two lateral extended lobes.

Included species.—7. 

Viola (Triflabellium) sp. 1, ined., 

V. flos-idae Hieron., 

V. joergensenii W. Becker, 

V. ×josephii J.M. Watson & A.R. Flores,

V. mesadensis W. Becker, 

V. triflabellata W. Becker, 

V. tucumanensis W. Becker,

V. uniquissima J. M. Watson & A. R. Flores

Distribution.—This group consists of one Chilean and five Argentinian endemics and one further species which inhabits both countries. The two species in Chile are adjacent to the border with Argentina. The total range is from northern Mendoza Province in Argentina to Tarapacá Region, Chile, the latter being a northernmost outlier. Tucumán and Catamarca provinces contain the main centre of diversity.

Note: This section is based on the informal, unranked alliance Triflabellatae of W. Becker (1926) which was comprised of: VV. joergensenii W. Becker, triflabellata W. Becker and tucumanensis W. Becker.

Etymology: The section epithet Triflabellium is based on the original name given to the group by Becker, referring to the diagnostic style crest consisting of one apical and two lateral flabellate, discrete lobes.

1. Marcussen, T. et al. A Revised Phylogenetic Classification for Viola (Violaceae). Plants 11, 2224 (2022). p. 41

2. Watson, J.M., Flores, A.R., Nicola, M.V. & Marcussen, T. (2022) Viola subgenus Neoandinium, Preliminary Monograph. International Rock Gardener: Glasgow, UK, pp. 192. [https://www.srgc.net/documents/publications/Viola%20monograph.pdf]

Iconography: Header image