CAPRIFOLIACEAE: Honeysuckle Family

KEY TO SAMBUCUS SPECIES

1. Pith of year 2 twigs white. Buds essentially sessile. Opposing petiole bases on the larger twigs touching or connected by a ridge .................................................. S. nigra ssp. canadensis

1. Pith of year 2 twigs brown. Buds short-stalked. Opposing petiole bases usually not touching or connected by a ridge .................... S. racemosa

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