Distribution and habitat
It is native to Europe, northern temperate Asia, and North America across Canada and the United States. It grows in riparian environments, woodlands, and other habitats, generally in moist areas.
Each individual leaf is composed of 5 to 7 leaflike leaflets, each of which is up to 16 centimeters long, lance-shaped to narrowly oval, and irregularly serrated along the edges. The leaflets have a strong disagreeable odor when crushed.
The inflorescence is a vaguely cone-shaped panicle of several cymes of flowers blooming from the ends of stem branches. The flower buds are pink when closed, and the open flowers are white, cream, or yellowish. Each flower has small, recurved petals and a star-shaped axis of five white stamens tipped in yellow anthers. The flowers are fragrant and visited by hummingbirds and butterflies.
The fruit is a bright red or sometimes purple drupe containing 3 to 5 seeds.
Varieties and subspecies
- Sambucus racemosa ssp. kamtschatica — red elder, native to Northeastern Asia. 
- Sambucus racemosa var. melanocarpa — Rocky Mountain elder, native to the Western United States and Western Canada, including the Rocky Mountains and Sierra Nevada.   
- Sambucus racemosa ssp. racemosa — European red elder. 
- Sambucus racemosa var. racemosa — Pacific red elderberry.  
- Sambucus racemosa ssp. sibirica — red elder, native to Siberia. 
It has been used as a traditional medicinal plant by Native Americans, including the Bella Coola, Carrier, Gitksan, Hesquiaht, Menominee, Northern Paiute, Ojibwa, Paiute, and Potawatomi peoples.  The uses included as an emetic, antidiarrheal, cold and cough remedy, dermatological and gynecological aid, and a hemostat. 
The fruits are reportedly safe to eat when cooked, but are potentially poisonous when raw. They were cooked in a variety of recipes by Native Americans, including by the Apache, Bella Coola, Gitxsan, Gosiute, Makah, Ojibwa, Quileute, Skokomish, Yurok peoples.
Cultivars in the nursery trade include:
- Sambucus racemosa 'Black Lace' — burgundy foliage. 
- Sambucus racemosa 'Lemon Lace' — golden yellow and green foliage. ]
- Sambucus racemosa 'Lemony Lace' — golden green foliage, with red new growth. 
- Sambucus racemosa 'Sutherland Gold' — green foliage, with bronze new growth.  It received the Royal Horticultural Society's Award of Garden Merit.
- Sambucus racemosa was originally described and published in Species plantarum 1:270. 1753. GRIN (October 9, 2003). "Sambucus racemosa information from NPGS/GRIN". Taxonomy for Plants. National Germplasm Resources Laboratory, Beltsville, Maryland: USDA, ARS, National Genetic Resources Program. Retrieved December 8, 2012.
- Trees, Shrubs, and Woody Vines of North Carolina: Red Elderberry (Sambucus racemosa var. pubens)
- "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-02-25. Retrieved 2014-10-17.
- NPIN Database
- ITIS Standard Report Page: Sambucus racemosa ssp. kamtschatica
- Calflora: Sambucus racemosa var. melanocarpa
- USDA Plants Profile for Sambucus racemosa var. melanocarpa (Rocky Mountain elder)
- Jepson eFlora: Sambucus racemosa var. melanocarpa
- ITIS Standard Report Page: Sambucus racemosa ssp. racemosa
- Calflora: Sambucus racemosa var. racemosa
- USDA Plants Profile for Sambucus racemosa var. racemosa (red elderberry)
- Jepson eFlora: Sambucus racemosa var. racemosa
- ITIS Standard Report Page: Sambucus racemosa ssp. sibirica
- NPIN−Lady Bird Johnson Wildflower Center: Sambucus racemosa (Red elderberry)
- University of Michigan at Dearborn: Native American Ethnobotany for Sambucus racemosa
- Pojar, J. & A. MacKinnon. (1994). Plants of the Pacific Northwest. Lone Pine Publishing. ISBN 1-55105-042-0
- Proven Winners.com: Sambucus racemosa Black Lace
- [http://www.waysidegardens.com/lemon-lace-sambucus/p/35264/ Wayside Gardens.com: Sambucus racemosa 'Lemon Lace'
- Proven Winners.com: Sambucus racemosa Lemony Lace
- Fine Gardening Magazine: Sambucus racemosa Sutherland Gold
- "RHS Plant Selector - Sambucus racemosa 'Sutherland Gold'". Retrieved 2 June 2013.
- USDA Plants Profile for Sambucus racemosa (red elderberry)
- CalFlora Database: Sambucus racemosa (red elderberry, American red elder)
- Jepson Manual (JM93) treatment of Sambucus racemosa
- Jepson eFlora (TJM2) treatment of Sambucus racemosa
- Burke Museum Profile
- UC Photos gallery — Sambucus racemosa
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