The species Impatiens linnaeus is notoriously difficult to classify morphologically, and the semi-succulent stems, fleshy leaves, and extremely fragile flowers make it challenging to prepare good herbarium specimens. Compared with flowers, seeds of Impatiens are more stable and conserved, and the importance of seed micromorphology for classification has been recognized. However, the micromorphological seed coat characteristics of Impatiens seeds have not been systematically studied.