Marco Wentzel, Deutschland/Germany, MarcoPedia (talk) 22:07, 3 December 2016 (UTC)
Wikimedia Commons
Description: English: Photo of the cactus Gymnocalycium bayrianum H.Till, taken from a plant in cultur, with flowers. Deutsch: Aufnahme des Kaktus Gymnocalycium bayrianum H.Till, aufgenommen in Kultur, mit Blüten. Español: Fotografía del cactus Gymnocalycium bayrianum H.Till, hecho de una planta en cultivo con flores. Date: 28 June 2015 (image taken on that day). Source: Own work. Author: Marco Wentzel, Deutschland/Germany, MarcoPedia (talk) 22:07, 3 December 2016 (UTC).
Marco Wentzel, Deutschland/Germany, MarcoPedia (talk) 22:16, 3 December 2016 (UTC)
Wikimedia Commons
Description: English: Photo of the cactus Gymnocalycium bayrianum GN88 69 H.Till, taken from a plant in cultur, detail of spines. Deutsch: Aufnahme des Kaktus Gymnocalycium bayrianum GN88 69 H.Till, aufgenommen in Kultur, Detail der Bedornung. Español: Fotografía del cactus Gymnocalycium bayrianum GN88 69 H.Till, hecho de una planta en cultivo con detailes de las espinas. Date: 18 June 2014 (image taken on that day). Source: Own work. Author: Marco Wentzel, Deutschland/Germany, MarcoPedia (talk) 22:16, 3 December 2016 (UTC).
