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A rhizome is the main stem of the plant that runs typically underground and horizontally to the soil surface. [5] [6] Rhizomes have nodes and internodes and auxiliary buds. [7] Roots do not have nodes and internodes and have a root cap terminating their ends. [8]
Layering is a vegetative propagation technique where the stem or branch of a plant is manipulated to promote root development while still attached to the parent plant. Once roots are established, the new plant can be detached from the parent and planted. Layering is utilized by horticulturists to propagate desirable plants. Natural layering ...
Branched: Aerial stems are described as being branched or unbranched. Bud: An embryonic shoot with immature stem tip. Bulb: A short vertical underground stem with fleshy storage leaves attached, e.g. onion, daffodil, and tulip. Bulbs often function in reproduction by splitting to form new bulbs or producing small new bulbs termed bulblets.
A number of plants have soil-level or above-ground rhizomes, including Iris species and many orchid species. T. Holm (1929) restricted the term rhizome to a horizontal, usually subterranean, stem that produces roots from its lower surface and green leaves from its apex, developed directly from the plumule of the embryo.
Prop-roots – In some dome-shaped (deliquescent) trees, from the mature horizontal boughs (stem-branches) some quite thick (millimeters to centimeters) roots come down. After growing and reaching the ground, they establish more elaborate root branches as well as show massive secondary thickening. Thus, they start to resemble the main trunk.
As a result of fertilisation, the female gametophyte produces sporophytes. A few species of Selaginella such as S. apoda and S. rupestris are also viviparous; the gametophyte develops on the mother plant, and only when the sporophyte's primary shoot and root is developed enough for independence is the new plant dropped to the ground. [3]
Horsetail with untidy branches from the lower parts (which may be prominent or not apparent), with or without main upright stems, able to form a colony from underground roots. Rocky ground tends to constrict root-spread and favours a bushy appearance, unrocky ground favours more slender plants arising from spreading roots, and trampling or ...
Asphodelus ramosus, the branched asphodel, is a perennial herbaceous plant in the order Asparagales. Similar in appearance to Asphodelus albus and particularly Asphodelus cerasiferus and Asphodelus aestivus , it may be distinguished by its highly branched stem and smaller fruits.