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A xerophyte (from Ancient Greek ξηρός (xērós) 'dry' and φυτόν (phutón) 'plant') is a species of plant that has adaptations to survive in an environment with little liquid water. Examples of xerophytes include cacti , pineapple and some gymnosperm plants.
In most such species, the tumbleweed is in effect the entire plant apart from the root system, but in other plants, a hollow fruit or inflorescence might detach instead. [1] Xerophyte tumbleweed species occur most commonly in steppe and arid ecosystems, where frequent wind and the open environment permit rolling without prohibitive obstruction. [2]
New plants can grow from seed, but in some populations, new stems grow from underground rhizomes that spread out around the parent tree. The evergreen leaves are dark green, linear, bayonet-shaped, 15 to 35 cm long, and 7 to 15 mm broad at the base, tapering to a sharp point; they are borne in a dense spiral arrangement at the apex of the stems.
Xerophyta is a genus of flowering plants in the family Velloziaceae. It was named in 1789 by de Jussieu. [1] [2] It is native to Africa, Madagascar, and the Arabian Peninsula. [3] Some species in this genus are poikilochlorophyllous plants. This means that during dry climatic conditions, they lose chlorophyll and cease photosynthesis and ...
Euphorbia as a small tree: Euphorbia dendroides. Euphorbia is a large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae.. Euphorbias range from tiny annual plants to large and long-lived trees, [2] with perhaps the tallest being Euphorbia ampliphylla at 30 m (98 ft) or more.
The following terms are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflets). [1] The edge of the leaf may be regular or irregular, and may be smooth or have hair, bristles, or ...
Leaves grow directly from the trunk, and typically fall when older, leaving a crown of leaves at the top. The leaves grow in a rosette, with new foliage emerging from the top and center of the crown. The trunk may be buried, so the leaves appear to be emerging from the ground, so the plant appears to be a basal rosette.
Plants in the genus Casuarina are dioecious trees (apart from C. equisetifolia that is monoecious), with fissured or scaly greyish-brown to black bark. They have soft, pendulous, green, photosynthetic branchlets, the leaves reduced to scale-like leaves arranged in whorls of 5 to 20 around the branchlets.
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