Photo Credit: © 2012 by Beth Maynor Young. Used by permission of the publisher. www.uncpress.unc.edu. “Rocket stage,” a vulnerable age for young longleaf. After spending time storing energy, a grass-stage juvenile expends it on a frantic growth spurt. If it can get its terminal bud above the next fire’s flames, it significantly increases its chance of survival. Solon Dixon Forestry Center, Andalusia, Alabama.