Underground drive

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Upper and outer race - thickened ginger in ginger

Underground drive - a modified type of shoot growing underground. From the shoot of the ground is different from the lack of leaves, which are transformed into scales, thickness, and lack of corpuscles. Underground shoots occur mainly in perennial herbaceous plants - perennials. They are storage organs - they store backing materials that allow the plant to survive winter (or summer in the tropics) rest periods. Plants in the winter will die out of the overflow, but will survive the underground rush. Of the donuts on the spring, the upper part is renewed. Underground shoots also perform a second function - they participate in vegetative propagation. The basic types of underground shoots are:

Plants with underground shoots are often geophytes. Bibliography

wiki

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