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The ERDL pattern, also known as the Leaf pattern, [2] is a camouflage pattern developed by the United States Army at its Engineer Research & Development Laboratories (ERDL) in 1948. [ 3 ] [ 4 ] It was not used until the Vietnam War , when it was issued to elite reconnaissance and special operations units beginning early 1967.
Chart illustrating leaf morphology terms. 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]
It has an alternate leaf pattern with the blade width of 4–15 cm and a height of 10–30 cm. The shapes of the leaves are oval and lobed with a wavy margin. Both sides of the leaves are hairy with stellate or simple hairs. Prickles may or may not be present on the leaves depending on the cultivar.
Cultivar of Coleus scutellarioides. Coleus (/ ˈ k oʊ l i ə s /, KOH-lee-əs) is a genus of annual or perennial herbs or shrubs, sometimes succulent, sometimes with a fleshy or tuberous rootstock, found in the Afro-Eurasia tropics and subtropics.
A rosette of leaves at the base of a dandelion Rosette growth form of the liverwort Ricciocarpos natans. In botany, a rosette is a circular arrangement of leaves or of structures resembling leaves. In flowering plants, rosettes usually sit near the soil, but they can also be at the top of an otherwise naked branch or trunk.
Like matai, the bark of more mature miro trees flakes off to leave a distinctive "hammer mark pattern", but unlike mataī, the pattern is not as pronounced nor as colourful (areas from which bark flakes have recently fallen in mataī often have a striking red colour that fades over time back to brown). these leaves take up to 3 years to decompose.
The etymology of the word "morphology" is from the Ancient Greek μορφή (morphḗ), meaning "form", and λόγος (lógos), meaning "word, study, research". [2] [3]While the concept of form in biology, opposed to function, dates back to Aristotle (see Aristotle's biology), the field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist ...
Scaevola taccada, also known as beach cabbage, sea lettuce, or beach naupaka, is a flowering plant in the family Goodeniaceae found in mangrove swamps and rocky or sandy coastal locations in the tropical areas of the Indo-Pacific.