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The internal transporting tissue in some plants that is made up of tubelike structures.
The stage in the life cycle of a plant in which the plant produces gametes, or sex cells.
A thin, rootlike structure that anchors a moss and absorbs water and nutrients for the plant
Tiny particles (male gametophytes) produced by seed plants that contain the cells that later become sperm cells.
The transfer of pollen from male reproductive structures to female reproductive structures in plants.
A plant that flowers when the nights are longer than the plant's critical night length.
A plant that flowers when the nights are shorter than the plant's critical night length.
critical night length
The number of hours of darkness that determines whether or not a plant will flower.
A plant with a flowering cycle that is not sensitive to periods of light and dark.
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