Practice question
Question
Which of the following plants produces both chasmogamous and cleistogamous flowers, and what is the primary advantage of cleistogamy?
Explanation
Plants like *Commelina*, *Viola* (Common pansy), and *Oxalis* produce both types. Cleistogamous flowers do not open at all. Their advantage is an assured seed set even in the absence of pollinators, as they are invariably autogamous.
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