Horizontal navelwort (Umbilicus horizontalis) is a fleshy perennial flowering plant in the stonecrop family Crassulaceae (in the genus Umbilicus) native to the eastern Mediterranean region in rocky habitats. Horizontal navelwort grows to an average of 25 cm (10 in) high. The thickly clustered, bell-shaped flowers are pale green, and grow in a raceme perpendicular to the spike, unlike common navelwort, whose flowers droop (thus the term "horizontal").