Red Larkspur

Delphinium nudicaule Torr. & Gray

are eaten by

• Global Biotic Interactions: Xylocopa tabaniformis orpifex Smith 1874
• Global Biotic Interactions: Battus philenor hirsuta
• Global Biotic Interactions: Calypte anna (Lesson & R 1829) (Anna's Hummingbird)
• Global Biotic Interactions: Calypte anna (Lesson & R 1829) (Anna's Hummingbird)
• Global Biotic Interactions: Calypte anna (Lesson & R 1829) (Anna's Hummingbird)

are host of

• Global Biotic Interactions: Erysiphe aquilegiae DC. 1815
• Global Biotic Interactions: Puccinia recondita Roberge ex Desm. 1857
• Global Biotic Interactions: Erysiphe polygoni DC. 1821
• Global Biotic Interactions: Puccinia recondita Roberge ex Desm. 1857
• Global Biotic Interactions: Puccinia recondita Roberge ex Desm. 1857

have flowers visited by

• Global Biotic Interactions: Battus philenor (Linnaues 1771) (Pipevine Swallowtail)