black-eyed susan
• noun
North American A North American plant of the daisy family (genus Rudbeckia), widely cultivated for its bright yellow or orange-yellow petals surrounding a distinctive dark brown or black conical center.
"We planted a large cluster of black-eyed Susans in the front border because they are highly drought-tolerant and attract native butterflies."
A climbing vine native to eastern Africa (Thunbergia alata), cultivated as a decorative plant for its striking five-petaled flowers, which are typically orange, yellow, or white with deep purple or black centers.
"The wooden trellis on the patio was entirely covered with the bright, cheerful blooms of a black-eyed Susan vine."
Word Nuance & Usage
The common name 'black-eyed Susan' is used for two completely distinct plants: a North American wildflower (Rudbeckia hirta) and an African climbing vine (Thunbergia alata), requiring contextual clues in horticultural discussions.
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Usage Trend
Historical frequency of usage in published text.