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Sinningia pampeana is a new rupicolous species from the rocky outcrops of the Pampa biome in southern Brazil and Uruguay. Morphological analyses based on herbarium material, field observations, and detailed illustrations support its recognition as a distinct species from Sinningia sellovii . Sinningia pampeana is restricted to rock outcrops within the Pampa grasslands, where populations are threatened by grazing, habitat degradation, and potential mining activities. Given the current uncertainty regarding its distribution and sampling completeness, a preliminary conservation assessment of ‘Data Deficient' (DD) is proposed under IUCN criteria.
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Ferreira et al. (2026) studied this question.
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