Flower bulbs
The bulbous flower refers to the metamorphosis of the underground stem or root, a spherical or perennial herbaceous flower. According to the morphological structure of their underground stems or roots, they can be roughly divided into five major categories: (1) Bulbs. Underground stems are scalelike. Outside the skin is called skin scales such as tulips, daffodils, primrose, etc.; outside the scales outside the outer skin coating is called no bulbs, such as the lily. (2) Bulbs. The underground stems are spherical or oblate spheroids, and the external skins are made of leather, such as Gladiolus, Xiangxilan and so on. (3) Roots and stems. Underground stem hypertrophy is root-like, above the obvious section, the new buds born at the top of the branches, such as canna, ginger, lotus, water lily, jade and so on. (4) Tubers. Underground stems are irregularly shaped or strips, such as calla lilies, cyclamen, gloxinia, tuberose etc. (5) Root class. The underground main root is hypertrophic and the roots emerge from the end of the root, such as dahlia. China Agricultural Network Editor