Mimosa pudica has finely divided leaves sensitive to touch and small pale pink or purple flowerheads. The RHS describes a low, spreading plant with spiny stems: when looking closely, its tiny leaflets are the detail worth following. [1]
Movement involves the pulvini, small swellings that act like joints. Changes in water pressure inside cells help the leaves fold; a study using X-ray imaging also revealed flexible structures and the network that supports water transport. The plant’s internal structure helps make its movement possible. [2]
Take this with youOur little discovery: seeing a leaf as something that can move. The greenery we treat as furniture leads a surprisingly active life.
Read the sources (2)
- Mimosa pudica — sensitive plant Royal Horticultural Society · accessed 9 Sept 2026
- Real-time imaging of pulvinus bending in Mimosa pudica Scientific Reports · accessed 9 Sept 2026
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