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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.
The word porcupine comes from the Latin porcus ' pig ' + spina ' spine, quill ', from Old Italian porcospino, ' thorn-pig '. [4] [5] A regional American name for the animal is quill-pig. [6] A baby porcupine is a porcupette. When born, a porcupette's quills are soft hair; they harden within a few days, forming the sharp quills of adults. [7]
In spanish is the same, coloquially we use "espina" and "espinoso" in a very broad sense, but botanists distinguish between espina (caulinar = thorn, foliar = spine) and aguijón (= prickle). It looks like botanists agree much more about the spanish terms than about the english ones. -- RoRo ( talk) 16:15, 25 September 2013 (UTC) [ reply ...
A plate or ring of structures derived from the receptacle, and occurring between whorls of floral parts. In some groups, especially Sapindales, the nectary is in the form of a prominent disk. In daisies, the central part of the capitulum is a disk, hence flowers borne there are called disk flowers or florets. discoid.
Prickles have been around for at least 400 million years, dating back to when ferns and their relatives emerged with some bearing prickles on their stems. The trait has since then popped up ...
Glochids or glochidia (sg.: "glochidium") are hair-like spines or short prickles, generally barbed, found on the areoles of cacti in the sub-family Opuntioideae. Cactus glochids easily detach from the plant and lodge in the skin, causing irritation upon contact. The tufts of glochids in the areoles nearly cover the stem surfaces of some cactus ...
An external spine having multiple points. Etymology: Greek skolos, a prickle. cf. chalaza. plural: scoli sensu Latin term meaning "in the sense of". sequestering The process of animals accumulating poisonous compounds from the food they are eating in order to become poisonous themselves for their predators.
Acantha – a prickle or spine. Acanthocarpus – fruits are spiny. Acanthocladous – branches are spiny. Aculeate – having a covering of prickles or needle-like growth. Aculeolate – having spine-like processes. Aden – a gland. Adenoid – gland-like. Adenophore – a stalk that supports a gland. Adenophyllous – leaves with glands.