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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.
Zanthoxylum americanum, the common prickly-ash, common pricklyash, common prickly ash or northern prickly-ash (also sometimes called toothache tree, yellow wood, or suterberry), is an aromatic shrub or small tree native to central and eastern portions of the United States and Canada.
Cyrtostachys renda, also known by the common names red sealing wax palm and lipstick palm, is a palm that is native to Thailand, Malaysia, Sumatra and Borneo in Indonesia. [9] It is the only species of the genus Cyrtostachys that can be found to the west of the Wallace Line , the faunal boundary separating the biogeographic realms of Asia and ...
In Judaism, the palm represents peace and plenty, and is one of the Four Species of Sukkot; the palm may also symbolize the Tree of Life in Kabbalah. The canopies of the Rathayatra carts which carry the deities of Krishna and his family members in the cart festival of Jagganath Puri in India are marked with the emblem of a palm tree.
Beaucarnea recurvata, the elephant's foot [4] or ponytail palm, [5] is a species of flowering plant in the family Asparagaceae. The species was native to numerous states of eastern Mexico but is now confined to the state of Veracruz. [1] [6] Despite its common name, it is not closely related to the true palms .
The general structure of a stinging hair is very similar in all the families of plants that possess them (except Tragia and Dalechampia). A multicellular base supports a single long thin cell, typically 1–8 mm long, with a brittle tip that easily breaks to form a sharp point that can penetrate skin. [ 7 ]
Phoenix roebelenii is a small to medium-sized, slow-growing slender tree growing to 2–7 metres (6.6–23.0 ft) tall. The leaves are 60–120 cm (24–47 in) long, pinnate, with around 100 leaflets arranged in a single plane (unlike the related P. loureiroi where the leaflets are in two planes). Each leaflet is 15–25 cm (6–10 in) long and ...
Phytophotodermatitis, also known as berloque dermatitis, [1] [2] [3] margarita photodermatitis, [4] [5] lime disease [6] or lime phytodermatitis [6] is a cutaneous phototoxic inflammatory reaction resulting from contact with a light-sensitizing botanical agent (such as lime juice) followed by exposure to ultraviolet A (UV-A) light (from the sun, for instance).