''Acanthostachys calcicola'' is a species of plant discovered in a limestone rock in the Brazilian state of

Tocantins Tocantins () is one of the 26 states of Brazil. It is the newest state, formed in 1988 and encompassing what had formerly been the northern two-fifths of the state of Goiás. Tocantins covers and had an estimated population of 1,496,880 in 20 ...

. ''Acanthostachys calcicola'' was discovered while conducting field work in the limestone outcrops of central Brazil's south-eastern Tocantins region. It is most similar to '' A. strobilacea'' but differs in petal colour and length, as well as in the presence of exserted stamens and pistil. ''A. calcicola'' is classified as endangered (EN) and is on the verge of extinction, according to a conservation assessment.

References

Bromelioideae Flora of North Brazil Endangered flora of South America {{Bromelioideae-stub