CR

Parodia arnostiana

Declining

Overview

Parodia curvispina is a species of cactus in the genus Parodia. The small, squat green plants produce yellow flowers, green fruit and black seeds. The species is found growing in Rio Grande do Sul, Brazil.

Parodia arnostiana faces severe threats from habitat destruction due to agricultural expansion and urban development in its restricted range. The species is particularly vulnerable to collection pressure from cactus enthusiasts and illegal trade, which has significantly reduced wild populations. Climate change poses an additional threat through altered precipitation patterns that affect this desert-adapted species' survival.

Threat summary

Habitat

This critically endangered cactus is endemic to rocky outcrops and limestone cliffs in the Cerrado and Caatinga regions of Brazil. It typically grows in well-drained, mineral-rich soils on steep slopes and crevices where it receives partial shade from surrounding vegetation.

Rocky areas· major

Frequently asked questions

Why is Parodia arnostiana classified as Critically Endangered?
Parodia arnostiana is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Parodia arnostiana faces severe threats from habitat destruction due to agricultural expansion and urban development in its restricted range. The species is particularly vulnerable to collection pressure from cactus enthusiasts and illegal trade, which has significantly reduced wild populations. Climate change poses an additional threat through altered precipitation patterns that affect this desert-adapted species' survival.
Where does Parodia arnostiana live?
Parodia arnostiana occurs in Brazil. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Parodia arnostiana?
The main threats to Parodia arnostiana are 2.2, 2.3, 5.1, and 5.4. The full IUCN-classified threat record for this species is detailed on the species page.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.