Synonyms
Heterothalamus tenellus var. gracilior Macloskie
Psila tenella (Hook. & Arn.) Cabrera
Heterothalamus tenellus var. robustior Macloskie
Heterothalamus tenellus (Hook. & Arn.) Kuntze
Heterothalamus tenellus var. austropatagonicus Skottsb.
Baccharis tenella Hook. & Arn.