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Prickles on a blackberry branch. In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.
Semi-double flowers have one or two extra rows of petals; doubles have more. Their inner petals are generally very like the outer ones in colour and patterning. They are often of a similar length and shape, though they may be slightly shorter and narrower, and some are attractively waved or ruffled.
Various folk cultures and traditions assign symbolic meanings to plants. Although these are no longer commonly understood by populations that are increasingly divorced from their rural traditions, some meanings survive. In addition, these meanings are alluded to in older pictures, songs and writings.
Elaeagnus angustifolia, commonly called Russian olive, [2] silver berry, [3] oleaster, [3] or wild olive, [3] is a species of Elaeagnus, native to Asia and limited areas of eastern Europe. It is widely established in North America as an introduced species .
Elaeagnus umbellata is known as Japanese silverberry, [2] umbellata oleaster, [3] autumn olive, [2] [4] autumn elaeagnus, [4] spreading oleaster, [4] autumnberry, or autumn berry. The species is indigenous to eastern Asia and ranges from the Himalayas eastwards to Japan .
The vivid red, semi-double Rosa gallica was "the ancestor of all the roses of medieval Europe". [1] Various folk cultures and traditions assign symbolic meaning to the rose, though these are seldom understood in-depth. Examples of deeper meanings lie within the language of flowers, and how a rose may have a different meaning in arrangements ...
They attach themselves firmly to olive trees and reduce the quality of the fruit; their main predators are wasps. The curculio beetle eats the edges of leaves, leaving sawtooth damage. [132] Rabbits eat the bark of olive trees and can do considerable damage, especially to young trees. If the bark is removed around the entire circumference of a ...
Studies have found that cedar waxwings attracted to roadside plantings of the shrub are susceptible to automobile-related mortality. In Brazos County, Texas between 8 March and 5 April 1981, researchers counted 298 cedar waxwings that had been killed while trying to get fruits from thorny-olive shrubs growing along one highway.