Resources

https://ucanr.edu/sites/Elderberry/Growing/Blue/

https://lifesongadventures.com/2022/08/blue-elderberry/

https://en.wikipedia.org/wiki/Sambucus_cerulea

https://www.wildflower.org/plants/result.php?id_plant=SANIC5

https://plants.usda.gov/DocumentLibrary/plantguide/pdf/cs_sanic5.pdf

https://nativeplantspnw.com/blue-elderberry-sambucus-nigra-ssp-cerulea/

https://bonnercountydailybee.com/news/2021/jun/13/blue-elderberry-stands-out-spring-fall/

https://www.birdandhike.com/Veg/Species/Shrubs/Sambuc_nig/_Sam_nig.htm