Orthrosanthus is a genus of perennial plants characterized by slender foliage that grows from compact, woody rhizomes. In late spring and early summer, they produce bowl- or saucer-shaped blue flowers arranged in loose terminal clusters.

Orthrosanthus

Orthrosanthus chimboracensis

Orthrosanthus laxus is an evergreen perennial that forms dense clumps, reaching a height of approximately 60 cm. It features woody rhizomes and narrow, linear leaves with a rough texture along the edges. The plant produces slender, branching stems that support pale violet-blue, saucer-shaped flowers, which bloom sequentially from late spring through early summer.

Orthrosanthus laxus

Orthrosanthus multiflorus is a clump-forming perennial that can reach heights of up to 60 cm. It features slender, upright leaves that eventually arch, resembling grass. In late spring and early summer, it produces loose spikes of saucer-shaped flowers that range from pale blue to violet blue.