[3] The oldest known record of M. ardens dates 1927 in the 4th volume of the Field Columbian Museums' Botanical series.

[2] The specimen from which this species was described originated from a dry ravine in the hills southeast of Moquegua.

[4] The dried plant is boiled with Contilo, Arabisca and Huamanripa and drank three times a day.

[4] M. ardens is native to the arid deserts[5] of Southern Peru,[6] though it can be found in the northern regions of the country.

[7] It has been identified in the General Sánchez Cerro, Mariscal Nieto, and Jorge Basadre provinces.