Stamens, sepals, petals, and carpels are ________. 1. Modified leaves 2. Found on all flowers 3. Capable of photosynthesis 4. found on both gymnosperms and angiosperms Solution 1. Modified leaves Morphologically, both sepals and petals are modified leaves. In the typical flower, the modified leaves can be grouped into four sets based on appearance and function: sepals, petals, stamens, and pistils..