Oxalis triangularis has leaves made of three leaflets, which can be green or deep purple. North Carolina State University describes their nightly closure; the small white or pink flowers also close at night. [1]
The Royal Horticultural Society describes its clump-forming habit and triangular leaflets. Flowers appear on slender stems above the foliage: a useful detail for recognising the plant beyond the outline of something that resembles clover. [2]
Take this with youA suggestion from our editors: observe the same leaf before and after sunset, without touching it. A change of position can deserve more attention than a notification.
Read the sources (2)
- Oxalis triangularis North Carolina State University · Extension Gardener Plant Toolbox · accessed 13 Sept 2026
- Oxalis triangularis Royal Horticultural Society · accessed 13 Sept 2026
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