Sweet Four o'Clock
Mirabilis longiflora, also known as the sweet four o'clock or the long-flowered four o'Clock, is a species of flowering plant native to the southwestern United States and northern Mexico. The flowers open in the late afternoon and bloom through the night, hence the name.
From Wikipedia, licensed under CC BY-SA 4.0
Research Mentions
Fragrant white wildflower spotted high in Arizona's Dragoon Mountains
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