larkspur

noun

lark·​spur ˈlärk-ˌspər 

1

: delphinium

2

: 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

Examples of larkspur in a Sentence

Recent Examples on the Web

Dubow says that aside from lilies, foxglove, larkspur, lantana, and autumn crocus are among the most dangerous. —Cori Sears, The Spruce, 13 May 2026

The brightly colored stalk of larkspur blooms will always draw attention in the garden, and true to their aesthetic, these statuesque flowers are associated with gracefulness and positivity. —Jenny Krane, Better Homes & Gardens, 11 May 2026

The first are true annuals, like cosmos, larkspur, bachelor's-button, celosia, and common sunflower. —Steve Bender, Southern Living, 11 Apr. 2026

For example, a few seeds of larkspur would kill you by alkaloid poisoning. —Literary Hub, 25 Mar. 2026

Word History

First Known Use

1578, in the meaning defined at sense 1

Rhymes for larkspur

• chauffeur
• cockspur
• concur
• confer
• defer
• demur
• deter
• hotspur
• incur
• infer
• inter
• jagir

Kids Definition

larkspur

noun

lark·​spur ˈlärk-ˌspər 

: delphinium

especially : a cultivated delphinium grown for its stalks of showy blue, pink, or white flowers

Medical Definition

larkspur

noun

lark·​spur ˈlärk-ˌspər 

1

: delphinium sense 2

2

a

: any of various annual Eurasian herbaceous plants (genus Consolida) that were formerly placed in the same genus as the delphiniums

b

: the dried seeds of a European larkspur (Consolida ajacis synonym Delphinium ajacis) used especially in a topical preparation to kill head lice