sidikalangensis Grey-Wilson is characterized by rather flat or shallowly cupped, white or pale pink flowers, the dorsal petal and the base of the two lateral petals stained with reddish or lilac-purple. steenisii Grey-Wilson has a broader navicular lower sepal with a short incurved spur flowers when viewed from the front have a curious bilateral asymmetry caused by a twist in the lateral united petals. They differ in a number of important aspects: the shape of the lateral petals, the color of the flowers, and the shape of the leaves. elephanticeps in having leaf lamina pubescent above with crenulated margins, petioles with several stipulated glands, the smaller tepals densely pubescent outside, but with lateral united petals which are bent backward along the midrib, the upper portions of the lateral united petals with a brown-purple patch and the dorsal petal with dense brown-purple reticulation inside. The two taxa are characterized by lower sepal like an elephant’s trunk, but I. Utami have potential as ornamental plants. Based on the morphological flower and their color, 9 species among them, such as I. Twenty five species of Impatiens were colleted from several research sites. Inventory study of Impatiens has been done in Sumatra.
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