Name: Dianthus nudiflorus.
Region: southern Europe.
Botany: annual herb; taproot; stem hairy, glandular, branching, green or purplish, to 40 cm tall; leaves linear, 2 cm long; flowers solitary in leaf axils, very long, cylindrical, ribbed calyx of fused sepals, tubular, corolla which 5 pink or purplish petals.