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

Figure 3.

Histogram displaying the density of leaf area in square centimeters with a median of 13.84, mean of 14.53, standard deviation of 5.17, and sample size of 102. Overlaid are four color-coded curves representing different variables with corresponding p-values: \( p_N = 0.0262 \), \( p_L < 0.001 \), \( p_G = 0.1119 \), and \( p_W = 0.2754 \).

Individual leaf area distribution of a representative Semiarundinaria densiflora culm. “Mean” and “Median” are the mean and median, respectively; “SD” is the standard deviation; n is the number of leaves on the culm; pN is the probability that the data are consistent with the null hypothesis of a normal distribution; pL is the probability that the data are consistent with the null hypothesis of a log-normal distribution; pG is the probability that the data are consistent with the null hypothesis of the two-parameter Gamma distribution; pW is the probability that the data are consistent with the null hypothesis of the two-parameter Weibull distribution. The colorful curves represent the predicted probability densities for the four distribution functions. “N”, “L”, “G” and “W” for different types of lines represent the norm, log-normal, Gamma and Weibull distributions, respectively.