: any of the delphiniums that are annuals, have the upper two petals of the corolla united and the bottom two missing, are now often placed in a separate genus (Consolida), and include several widely cultivated forms
: the dried ripe seeds of a European plant of the genus Delphinium (D. ajacis) from which an acetic tincture is sometimes prepared for use against ectoparasites (as lice)
Dwarf larkspur (Delphinium tricorne)—Louise K. Broman/Root Resources
Any of 365 species of herbaceous plants that make up the genus Delphinium in the buttercup family, many of which are grown for their showy flower stalks. Annual larkspurs (sometimes separated as the genus Consolida) include the common rocket larkspur (D. ajacis, or C. ambigua) and its varieties, up to 2 ft (60 cm) tall, with bright blue, pink, or white flowers on branching stalks. Perennial larkspurs, often with blue flowers, include species that grow to 4.5 ft (1.4 m).