Delphinium madrense
Delphinium madrense, commonly known as Sierra Madre larkspur or Edwards' Plateau larkspur, is a flowering plant in the buttercup family (Ranunculaceae). It grows in the southwestern United States (Texas) and northern Mexico (Coahuila, Nuevo León, Tamaulipas).
The plant has stems 30–80 cm tall, with a base that is often reddish and lightly hairy. It has both basal and stem leaves, with 0–8 basal leaves at flowering and 3–11 leaves along the stems. The leaves are semicircular or heart-shaped.
The inflorescence carries 5–75 flowers. Flowers have blue sepals that range from dark blue to light blue, with the lower petals lifted. The fruit is a follicle about 15–21 cm long. Flower color can also be white, in addition to blue. It blooms from March through June. Conservation status: Apparently Secure.
This page was last edited on 2 February 2026, at 15:50 (CET).