obligate self-pollination

botany

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In Fabales: Classification of Fabaceae
The most effective kind of obligate self-pollination, however, is that of cleistogamous flowers, which do not open and thus prevent the entry of insects. Lespedeza and many other genera of Papilionoideae legumes bear both kinds of flowers, generally on the same plant. Enforced inbreeding serves to fix and maintain successful…
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