(Of a flower) intermediate between single and double in having only the outer stamens converted to petals.
- The balloon-like buds may open into semi-double flowers having ten petals instead of the regulation five which are indeed lovely.
- Plants tend to be hardy, low growing and produce single or semi-double flowers.
- The Hawaiian hybrid forms of Hibiscus rosa-sinensis have been bred to include a wonderful range of pinks with single, semi-double and fully double flowers, sometimes with two or three shades in each flower.
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