Definition of horsebush

in the Bahama islands
: any of several plants: such as
a : a West Indian tree (Peltophorum adnatum) of the family Leguminosae with densely brown-tomentose foliage and racemose yellow flowers
b : an annual weedy herb (Heliotropium parviflorum) with spicate white flowers
c : a West Indian sticky shrub (Gundlachia corymbosa) of the family Compositae with alternate leaves and many small white flowers in corymbose heads

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to corrupt or become corrupted

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