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Mirabilis rotundifolia
Roundleaf four o'clock is a small perennial herb native only to south-central Colorado, growing in the Arkansas River Valley on shale outcrops. It is a wild species rarely grown in gardens, so its care centers on sharp drainage, full sun and minimal watering.
Mirabilis rotundifolia is a species of flowering plant in the four o'clock family known by the common name roundleaf four o'clock. It is endemic to Colorado in the United States, where it is limited to the south-central part of the state. It occurs in the Arkansas River Valley in Fremont, Pueblo, and Las Animas Counties.
This perennial herb has hairy erect or upright stems measuring 20 to 30 centimeters long. The leaves have thick oval or round blades up to 7 centimeters long by 6 wide. The branching inflorescence has bell-shaped involucres each containing three purple-pink flowers about a centimeter wide. The flowers open in the morning and close by mid-morning or mid-day. The hairy fruit is about half a centimeter long.
White four o'clock · Winged four o'clock · Scarlet four o'clock · Mirabilis elegans · Mauka · Marvel of Peru · Desert wishbone-bush · Narrowleaf four o'clock · Sweet four o'clock · MacFarlane's four o'clock · Colorado four o'clock · Heartleaf four o'clock
Text excerpted from the Wikipedia article Mirabilis rotundifolia by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
