This is a variable species, distributed widely across southeastern states, usually in thin swampy woods and brushy wet meadows on medium acid soils. Pringle (1967) and other have found that occasional hybrids of andrewsii and puberulenta resemble saponaria, but he considered it unlikely that saponaria originated from such hybridization. The species may have declined much in Ky. during recent decades. Although there are widely scattered records, recent observastions posted at iNaturalist are largely restricted to PULA.