Matucana haynei subsp. myriacantha (Vaupel) Mottram in Cactaceae Consensus Init. 3: 11. 1997
Matucana haynei subsp. myriacantha in Cactaceae Consensus Init. 3: 11. 1997
is new combination for Echinocactus myriacanthus in Bot. Jahrb. Syst. 50(2-3, Beibl. 111): 25. 1913
Matucana haynei subsp. myriacantha in Cactaceae Consensus Init. 3: 11. 1997