Type citation
Chile. Región del Biobío. Provincia del Biobío, comuna de Santa Bárbara, faldeos del volcán Callaqui, cajón del estero Malla, 1660 m, 37°57’28,0” S; 71°26’53,0” O, S. Teillier, C. Salamanca, I. Ossa, E. Thielemann & C. Baeza 8611, I-2023 (holotipo, CONC 193560).
References
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Marticorena et al. (2023)
Marticorena, A. , Teillier, S. and Salamanca, C. 2023. Chaetanthera callaquiensis (Asteraceae) una nueva especie para Chile. Gayana. Botánica 80(2): 181
Regions
Distribution and habitat
This species has been collected on the slopes of the Callaqui volcano in the Biobío Region and presently this is the only known location. It occurs in the "high-altitude grassland", above the boundary of the montane deciduous forests of Nothofagus pumilio and the scrublands of Nothofagus antarctica, ccompanied by species such as Azorella prolifera, Baccharis magellanica, and Festuca acanthophylla (Marticornea et al. (2023).
Key characteristics
This species very similar to Chaetanthera villosa but differs by having completely glabrous leaves and bracts.