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. 2025 Dec 18;16:1685552. doi: 10.3389/fpls.2025.1685552

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Copyright © 2025 Jiao, Liu, Niklas, Damgaard, Yao, Lian, Jiang and Shi.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Lorenz curve graph showing the cumulative proportion of leaf area against the cumulative proportion of the number of leaves, with a Gini coefficient of 0.2007. The red line represents perfect equality. The area between the red line and the curve is shaded gray. Sample size is one hundred two. — The Lorenz curve formed by the accumulative proportion of leaf area per culm plotted against the accumulative proportion of the number of leaves per culm. The Gini coefficient is defined as twice the area of the shaded region bounded by the line of absolute equality and the Lorenz curve.