Elder-blow

1838, Lydia Maria Child, The American Frugal Housewife, New York: Samuel S. & William Wood, 22nd edition, enlarged, p. 27, A poultice of elder-blow tea and biscuit is good as a preventive to mortification.

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I wouldn’t tech it sooner a cow’d eat elder blows.

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What are his [the writer’s] garland and singing robes? What but a sensibility so keen that the scent of an elder-blow, or the timber-yard and corporation-works of a nest of pismires is event enough for him,—all emblems and personal appeals to him.

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[…] the long highway broidered thick With elder-blow and rose;

Source: wiktionary