Silene caroliniana is a perennial herb, about 15 cm tall, from a taproot, growing in clumps; hairy.
Leaves opposite, basal leaves stalked, stem leaves often stalkless, blade 5-12 cm long 1.2-3 cm wide.
Flowers dark pink, petals 0.8-1.5 cm long; calyx tubular, 1.5-2 cm long; inflorescence dense of 5-13 flowers; blooming April-May.
Fruit a capsule opening at top to release warty seeds.
Wetland status: UPL.
Frequency in NYC: Rare (NYS, S3, V); Locally common, otherwise rare.
Habitat: Crevasses in exposed bedrock in undisturbed, dry, woods, in partial shade. Found in humus soil pH 5.0 (Gargiullo, unpublished data).