Yellow Pine, a name sometimes given to the ponderosa pine, found in the western United States, and also to such southern pine trees as the longleaf, slash, shortleaf, and loblolly.
Pollen grains are, in essence, plant sperm. But how do the grains get where they need to go, and what's the advantage of trusting your genetic future to the winds?
They call kudzu the plant that ate the South for a reason. How did this leafy green legume make its way here all the way from Asia, and how has it managed to devour entire buildings?