Arrojadoa penicillata Arrojadoa penicillata (Gürke) Britton & Rose, Cactaceae 2: 171, f. 243. 1920 sec. Zappi & Taylor 20201≡Cereus penicillatus Gürke in Monatsschr. Kakteenk. 18: 70. 1908 syn. sec. ???2≡Cephalocereus penicillatus (Gürke) Werderm., Bras. Säulenkakt.: 116. 1933 syn. sec. ???21. Zappi, D. & Taylor, N. P. 2020: Cactaceae in Flora do Brasil. – Jardim Botânico do Rio de Janeiro – http://floradobrasil.jbrj.gov.br, 2. =Arrojadoa penicillata var. decumbens Backeb. & Voll in Arch. Jard. Bot. Rio de Janeiro 9: 164. 1950 syn. sec. Taylor & Zappi 200433. Taylor, N. P. & Zappi, D. 2004: Cacti of Eastern Brazil. – London: Kew PublishingContent
