‘Brown Star’ is an hybrid bred from A. asterias and A. myriostigma. It displays striking dark epidermis, ranging from brown to nearly black. Color intensity varies with light and season: brownish-green in winter, deep brown to black in summer, especially under strong sunlight.

‘Brown Star’ è un cultivar registrato. Pubblicazione originale:
PIERWSZE POLSKIE ODMIANY KAKTUSÓW Z RODZAJU ASTROPHYTUM LEM.: ‘BROWN STAR’ ORAZ ‘SNOWY PETER’
Autori: Piotr Licznerski, Justyna Lema-Rumińska (1 febbraio 2023).
URL: https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://epikwiatycebulowe.pl/PDF/W7%2520Zeszyt%2520streszcze%25C5%2584%2520-%2520konf.%2520Najnowsze%2520osi%25C4%2585gni%25C4%2599cia.pdf&ved=2ahUKEwiTj_nW1vWOAxVU_7sIHQUoBOUQFnoECBYQAQ&usg=AOvVaw3ABvyNEKq1f2pQvLsj-7cD