The edges of Yucca filamentosa 's leaves naturally curl, forming delicate spirals
A leaf rests in silica gel, which dries its tissues, preserving the DNA for later extraction
Trichomes, hair-like structures that can be found covering the surface of many plant species, serve as a defense from herbivory
A sequence of images illustrates the early growth of Leucanthemum  x superbum
Mimulus "Magic" flowers are created by crossing M. guttatus with M. luteus , resulting in a wide variety of colors in the F1 generation
The leaves of Monstera deliciosa form holes, spreading as far as possible in their search for sunlight in the dark understory of tropical rainforests
Plantago lanceolata relies on wind to spread its pollen to neighboring plants
Lactuca serriola , a common weed, is sometimes called prickly lettuce
The stages of a flower, from bud to seed pod, are illustrated in Myosotis
The underside of a leaf reveals its red pigments, not visible from above due to the presence of chlorophyll
The cotyledons emerge from a Solanum lycopersicum seed
A gradient of color is visible in a fallen leaf
Clippings from Mimulus guttatus are placed in water to test whether they are able to send out roots and re-establish themselves
The anatomy of an orchid flower is detailed
Large sample sizes are necessary to achieve significant results in scientific experiments
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