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 20 seasonal desert DHJanzen100329.jpg high resolution
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| This Costa Rican Jacquinia nervosa (Theophrastaceae) tree illustrates several aspects of the interactions of competition, light availability, water availability, and being evergreen (versus being deciduous). This photograph was taken in the full dry season (six months with no rain) and the general vegetation is obviously deciduous (leafless). When the rains come at the beginning of the rainy season, these deciduous trees will leaf out and it will look like a temperate zone forest in summer. However, the Jacquinia nervosa tree is clearly evergreen, and its common name in Spanish - siempre verde - reflects this. But, is it? | ||
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