How does fireweed get its name?

What plant is considered the most useful to humans? What are some adjectives that describe weeds? Why can zebras and wildebeests live together with little competition? What is long day short night? Why do some trees retain their leaves instead of them falling off during certain seasons? Do you seed and fertilize or fertilize and seed? Why did Mendel not find linkage between seed color and flower color? What time of year do you trim pepper trees? Is dania another name for corriander? Are ginger underground stem? How can I ensure the optimal growth and ripening of small green apples on a tree? Why are the leaves of my tomato plant curling? Why has the bamboo turned yellow? What is the average height of a corn stalk in meters? Where do bush babies drink water from? Can I apply lime and crabgrass preventer together? Is dragon scale fern flowering? How can I grow bell peppers from a bell pepper? What is NJ number one production crop? What anchors plants into soil?