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The stems are resinous, oily, and glabrous to puberulent, with stipules less than 1.5 mm. [4] Emerging from the stems are alternate spirally arranged leaves, and sometimes branches. The leaves are linear, often 5 to 10 mm long, and shaped like needles. [5] They are shaped nearly round in cross section, and end apiculate, or with a sharp tip. [3]
Aridisols (or desert soils) are a soil order in USDA soil taxonomy. [1] Aridisols (from the Latin aridus , for "dry", and solum ) form in an arid or semi-arid climate. Aridisols dominate the deserts and xeric shrublands , which occupy about one-third of the Earth's land surface.
Their leaves, more or less silvery in color, are covered with specialized cells capable of rapidly absorbing water that gathers on them. [2] They are also commonly known as air plants because they obtain nutrients and water from the air, not needing soil for nourishment. They have a natural propensity to cling to whatever surfaces are readily ...
Primeval redwood forests, coastal mangrove stands, sphagnum bogs, desert soil crusts, roadside weed patches, wheat fields, cultivated gardens and lawns; all are encompassed by the term vegetation. The vegetation type is defined by characteristic dominant species, or a common aspect of the assemblage, such as an elevation range or environmental ...
A leaf (pl.: leaves) is a principal appendage of the stem of a vascular plant, [1] usually borne laterally above ground and specialized for photosynthesis.Leaves are collectively called foliage, as in "autumn foliage", [2] [3] while the leaves, stem, flower, and fruit collectively form the shoot system. [4]
Aerva javanica, the kapok bush or desert cotton, is a species of plant in the family Amaranthaceae. It has a native distribution incorporating much of Africa (including Madagascar), and the south-west and south of Asia, and it has become adventitious in northern Australia.
Plus, composting saves money—you don't need to buy amendments, such as manure, compost, or humus, to enrich the soil. "Leaves are a free resource and nature’s way to return nutrients to the ...
The springs can be represented by the following equation: p = k y {\displaystyle p=ky} where k {\displaystyle k} is the non-linear spring stiffness defined by the p–y curve, y {\displaystyle y} is the deflection of the spring, and p {\displaystyle p} is the force applied to the spring.