It was first described in 2007 and has been found across Mexico and the Canary Islands, but may be present where other cacti grow.

Its sporocarps are short (0.1–0.7 mm tall); their sporotheca is pale yellow with an orange stalk and their spores have a diameter of 7.5 μm.

It grows on basic media with a pH of 7.8–10.0, with optimum growth occurring at 8.5–9.4.

The species was named after Wolfredo Wildpret de la Torre, an expert in the flora of the Canary Islands.

[1] Didymium wildpretii is known to grow on species of the globose cacti Echinocactus platyacanthus, Mammillaria carnea and Ferocactus latispinus; the opuntioid cacti Opuntia depressa, O. maxima, O. pilifera and O. tomentosa) and the columnar cacti (Myrtillocactus geometrizans, Pachycereus hollianus, P. weberi, Stenocereus and Neobuxbaumia.