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The stem anatomy of ferns is more complicated than that of dicots because fern stems often have one or more leaf gaps in cross section. A leaf gap is where the vascular tissue branches off to a frond. In cross section, the vascular tissue does not form a complete cylinder where a leaf gap occurs.
Many monocots are herbaceous and do not have the ability to increase the width of a stem (secondary growth) via the same kind of vascular cambium found in non-monocot woody plants. [35] However, some monocots do have secondary growth; because this does not arise from a single vascular cambium producing xylem inwards and phloem outwards, it is ...
The age of some herbaceous perennial plants can be determined by herbchronology, the analysis of annual growth rings in the secondary root xylem. [18] Herbaceous plants do not produce perennializing above-ground structures using lignin, which is a complex phenolic polymer deposited in the secondary cell wall of all vascular plants. The ...
Juncaceae is a family of flowering plants, commonly known as the rush family.It consists of 8 genera and about 464 known species [2] of slow-growing, rhizomatous, herbaceous monocotyledonous plants that may superficially resemble grasses and sedges.
The family Campanulaceae (also bellflower family), of the order Asterales, contains nearly 2400 species in 84 genera of herbaceous plants, shrubs, and rarely small trees, often with milky sap. [2] Among them are several familiar garden plants belonging to the genera Campanula (bellflower), Lobelia , and Platycodon (balloonflower).
Replacement of a tap root system by a fibrous root is seen in onions, tuberose (Polyanthes tuberosa), grasses, etc. Fibrous roots from normal-stem nodes are seen in grasses like maize, sugarcane, bamboo, etc. Fibrous roots from nodes help in the survival of the plant and thus in vegetative reproduction, when the plant's base is damaged or cut ...
Most are herbaceous annuals or perennials, dying off above ground each year. A few species are shrubs or small trees, such as some Acanthophyllum species. [6] Most plants are non-succulent; i.e. having no fleshy stems or leaves. The nodes on the stem are swollen. The leaves are almost always opposite, [7] rarely whorled. The blades are entire ...
Zingiberales are one of an ecologically and morphologically diverse and species-rich order of monocots, with one of the most distinct floral morphology. [6] [7] [8] They are large rhizomatous herbaceous plants but lacking an aerial stem, except when flowering.