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

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

Cold-hardy annual seeds like calendula, nigella, annual poppies, snapdragon, and larkspur can often be sown directly in fall to help cover the ground in spring. —Erica Browne Grivas, Better Homes & Gardens, 27 Oct. 2025

Bold shades of poppy and larkspur are featured in denim and recycled leather sets. —Lisa Lockwood, Footwear News, 3 Sep. 2025

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