Research Article

Dominant Occurrence of Cleistogamous Flowers of Lamium amplexicaule in relation to the Nearby Presence of an Alien Congener L. purpureum (Lamiaceae)

Figure 1

Relations between the proportion of CH flowers in an individual L. amplexicaule and the frequency of L. purpureum in a patch (left), the total number of Lamium plants (center), and the stem length (mm) of L. amplexicaule (right) at the Kyoto site. Data collected during different dates are pooled in this figure, although the study dates were incorporated as a random effect in the statistical analysis (see the text).
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