Fig. 5.

Proportion of individuals in different bud and tiller stages of (A) Andropogon gerardii and (B) Dichanthelium oligosanthes. DMB, developing or mature buds; JT, juvenile tillers (three size classes for D. oligosanthes: 1, no extended leaf; no photosynthesis; 2, no extended leaf, photosynthesis; 3, extended photosynthesizing leaf); VT, vegetative tillers; FT, flowering tillers; UT, unknown due to culm damage. Juvenile tillers are defined as having the primary shoot axis emerged past the bud’s prophyll but are typically still below ground. A. gerardii showed a high degree of synchrony in bud transitions, whereas D. oligosanthes showed asynchrony, with buds and tillers in various stages of development present at any given time. (Figure adapted from Ott and Hartnett, 2012a.)