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Aloe vera ( / ˈæloʊ ( i) vɛrə, vɪər -/) [ 3] is a succulent plant species of the genus Aloe. [ 4] It is widely distributed, and is considered an invasive species in many world regions. [ 4][ 5] An evergreen perennial, it originates from the Arabian Peninsula, but also grows wild in tropical, semi-tropical, and arid climates around the ...
Non-vascular plants are plants without a vascular system consisting of xylem and phloem. Instead, they may possess simpler tissues that have specialized functions for the internal transport of water. [citation needed] Non-vascular plants include two distantly related groups: treat as three separate land-plant divisions, namely: Bryophyta ...
Botanists define vascular plants by three primary characteristics: Vascular plants have vascular tissues which distribute resources through the plant. Two kinds of vascular tissue occur in plants: xylem and phloem. Phloem and xylem are closely associated with one another and are typically located immediately adjacent to each other in the plant.
Exodermis. The exodermis is a physiological barrier that has a role in root function and protection. [1] The exodermis is a membrane of variable permeability responsible for the radial flow of water, ions, and nutrients. [2] [3] It is the outer layer of a plant's cortex. [1] [4] The exodermis serves a double function as it can protect the root ...
Grain, fruit, and vegetables are basic human foods and have been domesticated for millennia. People use plants for many purposes, such as building materials, ornaments, writing materials, and, in great variety, for medicines. The scientific study of plants is known as botany, a branch of biology .
Alternanthera is a genus of flowering plants in the family Amaranthaceae. It is a widespread genus with most species occurring in the tropical Americas, [ 2][ 3] and others in Asia, Africa, and Australia. [ 3] Plants of the genus may be known generally as joyweeds, or Joseph's coat. [ 4] Several species are notorious noxious weeds.
In botany, a perennial plant or simply perennial is a plant that lives more than two years. [ 1][failed verification] The term ( per- + -ennial, "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also widely used to distinguish plants with little or no woody growth (secondary growth ...
Plastids function to store different components including starches, fats, and proteins. [9] All plastids are derived from proplastids, which are present in the meristematic regions of the plant. Proplastids and young chloroplasts typically divide by binary fission, but more mature chloroplasts also have this capacity.