Basionym:
Clavaria brachiata Batsch, Elenchus fungorum. Continuatio prima: 233, t. 28:163 (1786) [MB#195903]
Obligate synonym: Isaria brachiata (Batsch) Schumach., Enumeratio Plantarum, in Partibus Sællandiae Septentrionalis et Orientalis Crescentium 2: 443 (1803) [MB#208579]
Taxonomic synonyms:
- Tilachlidium pinnatum Preuss, Linnaea 24: 127 (1851) [MB#157291]
- Isaria filiformis Wallr., Flora Cryptogamica Germaniae 2: 307 (1833) [MB#161009]
- Hirsutella ramosa Mains, Mycologia 41 (3): 308 (1949) [MB#287031]
- Tilachlidium ramosum (Mains) Mains, Mycologia 43: 714 (1952) [MB#282963]
- Tilachlidium setigerum Malençon, Bull. soc. Hist. nat. afr. N: 148 (1953) [MB#306831]
- Corethropsis epimyces Massee (1885) [MB#206395]
- Isaria intricata Fr., Systema Mycologicum 3: 278 (1832) [MB#164317]
- Tilachlidium subulatum A.L. Sm., Transactions of the British Mycological Society 3: 122 (1909) [MB#171483]
- Isaria citrina Pers., Icones et Descriptiones Fungorum Minus Cognitorum 1: 9, tab. 3 figs 1-2 (1798) [MB#204724]
- Isaria agaricina Pers., Commentatio de Fungis Clavaeformibus: 111 (1797) [MB#207581]