Mandarin Honeysuckle Vine Culture of Mexico. The Pericon flower. The Pericn flower (Mexican Marigold) is very similar to the cempasuchil flower due to its color and aroma. It is a species native to Mexico and Guatemala. This Zanthoxylum simulans Szechuan Pepper, Chinese pepper, Prickly Ash PFAF Plant Database Philodendron Orange Princess in 4 Round Pot Kens Philodendrons It's International Clean Air Day Breathe easy with Air Purifying Houseplants! Each of these plants are verified to remove harmful toxins from the air in NASA's Clean Air Study, making them Evaluation of the root system of Vetiver grass (Chrysopogon zizanioides L. Roberty) using different sampling methods Environmental Systems Research Springer Nature Link