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We investigated whole-plant leaf area in relation to ontogenetic variation in leaf-size for a forest perennial herb,  Cardiocrinum cordatum . The 200-fold ontogenetic variability in  C. cordatum  leaf area followed a power-law dependence on total leaf number, a measure of developmental stage. When we normalized for plant size, the function describing the size of single leaves along the stem was similar among different-sized plants, implying that the different-sized canopies observed at different times in the growth trajectory were fundamentally similar to each other. We conclude that the growth trajectory of a population of  C. cordatum  plant leaves obeyed a dynamic scaling law, the first reported for a growth trajectory at the whole-plant level.

Dynamic Scaling in the Growth of a Non-Branching Plant, Cardiocrinum cordatum