Rockspirea

Holodiscus dumosus (Nutt.) Heller

are eaten by

• Global Biotic Interactions: Limenitis weidemeyerii

are host of

• Global Biotic Interactions: Cytospora ceratosperma (Tode) G. C. Adams & Rossman 2015
• Global Biotic Interactions: Blumeriella filipendulae (Thüm.) Rossman 2014
• Global Biotic Interactions: Blumeriella filipendulae (Thüm.) Rossman 2014
• Global Biotic Interactions: Blumeriella filipendulae (Thüm.) Rossman 2014
• Global Biotic Interactions: Cylindrosporium cannabinum Ibrah. 1955

have flowers visited by

• Global Biotic Interactions: Colletes paniscus Viereck 1903
• Global Biotic Interactions: Lycaena nais (Edwards 1871)
• Global Biotic Interactions: Speyeria atlantis hesperis Edwards 1864
• Global Biotic Interactions: Hammerschmidtia ferruginea
• Global Biotic Interactions: Celastrina neglecta