[1] The species is similar to Merianthera burlemarxii with a few characteristic differences: "the total absences of both a peduncle and bracteoles, the calyptrate calyx and the fruits developing from inferior ovaries and dehiscing through longitudinal slits.

"[1] The species can be identified as a shrub or treelet at a height of up to 2.5m with candelabriform branches, leaves are opposite and caducous, flowers are pedicellate (5-6) ranging from purple to pink depending on developmental age, hypanthium is conical at 5-7 mm, antesepalous, dimorphic stamen (10-12), inferior ovary 7-10mm, ribbed fruit that ruptures when mature, and pyramidal seeds.

[1] Merianthera calyptrata has been sighted in Jacinto, in northeastern Minas Gerais, Brazil on inselbergs and granite outcroppings, an area that experiences dry winters and wet summers.

[1] With only three sightings, there is not enough data to support information about the species per the Guidelines for Using the IUCN Red List Categories and Criteria.

[1] According to Goldenberg(2023), its scarcity and limited sightings in a specific location, as well as its susceptibility to negative impacts from random environmental events, it is advisable to classify this species within the Vulnerable category.