It's anyone's guess what inspires the Donald's famous 'do. It very well could be one of these five plants. You're welcome.View photosAndrew H. Walker / Getty ImagesMore1. Mexican feather grassView photosMoreMexican Feather grass by Tepeyac" />It's drought tolerant, it's gorgeous, but some people think it's invasive and should be uprooted to make room for natives. We have a feeling that Donald might agree.2. BonsaiView photosBela Tibor Kozma/Getty ImagesMoreBonsai, like the comb over, is an ancient art form especially popular with the older crowd.3. CockscombView photosMoreCelosiaCristataYellowToreador By Mohd Hafiz Noor Shams" />Though cockscomb is an annual flower, it reseeds freely. That means it keeps showing up—even when you think it's gone.4. Yellow starthistleView photosMore"Yellow star thistle" by Peggy Greb" />Like any weed, it's quick to dominate the field.5. ChrysanthemumView photosPhoto by DeAgostini/Getty ImagesMoreSome call them ugly. Some call them gaudy. But we appreciate mums for their big fall show and uniqueness among other blooms.