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Pholisma sonorae is a perennial herb which grows in sand dunes, its fleshy stem extending down to two meters (six feet) below the surface and emerging above as a small rounded or ovate form. It may be somewhat mushroom-shaped if enough sand blows away to reveal the top of the stem.
Pholisma arenarium is a species of flowering plant in the borage family known by several common names, including desert Christmas tree, scaly-stemmed sand plant, and purple sand food. As the name implies, the loaf-like part of the root is edible.
Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass. [2]
Oolitic aragonite sand is composed of the calcium carbonate mineral, aragonite, with an egg-like shape ("oolitic" from the Ancient Greek word ᾠόν for "egg") and sand grain size. This sand type forms in tropical waters through precipitation , sedimentation , and microbial activity, and is indicative of high energy environments. [ 1 ]
The sand vein can be removed by making a shallow cut lengthwise down the outer curve of the shrimp's body, allowing the dark ribbon-like digestive tract to be removed with a pointed utensil. Special deveining tools are sometimes used but knives, skewers, and even toothpicks can be used to devein.
Grain size (or particle size) is the diameter of individual grains of sediment, or the lithified particles in clastic rocks. The term may also be applied to other granular materials . This is different from the crystallite size, which refers to the size of a single crystal inside a particle or grain.
(Arabic: shaʻir eḥṣeinī; zraʻ sāneh) A wild grain that grows profusely throughout all the country, and reaching mature growth in late Spring (around May). [106] When fully dry, the seed kernels with their awns fall from the spikes when only slightly disturbed. Best to reap the stalks of wild barley when they are still green and intact.
Greensand or green sand is a sand or sandstone which has a greenish color. This term is specifically applied to shallow marine sediment that contains noticeable quantities of rounded greenish grains. These grains are called glauconies and consist of a mixture of mixed-layer clay minerals, such as smectite and glauconite. Greensand is also ...