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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 discovery could help engineer new thorn-free variants. A new study has found how a rose and other plants like a tomato and eggplant came to get their prickles. The discovery could help ...
It uses thorn, spine and prickle as here, adding to the references. --RoRo 17:26, 25 September 2013 (UTC) Good sources. Also, as I said above, I think that the fact that botanical Latin does not distinguish thorn and spine as nouns (spina is used for both) is an issue worth noting.
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.
The spines are the relatively large, radiating organs; the glochids are the fine prickles in the centres of the bunches. Glochids (Opuntia microdasys monstrose) 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.
Pelvic fin of a Java barb, a ray-finned fish The short fin spines on a coelacanth, a lobe-finned fish A lionfish, with venomous spines The stinger on a stingray's tail. Spines are found in the fins of most bony fishes, particularly actinopterygians (ray-finned fishes), who have folding fan-like fin made of spreading bony spines called lepidotrichia or "rays" covered by thin stretches of skin.
Acanthochronology is the study of cactus spines or Euphorbia thorns grown in time ordered sequence (i.e. in series). Physical, morphological or chemical characteristics and information about the relative order or absolute age of the spines or thorns is used to study past climate or plant physiology.
Carrie White in Carrie. Okay—Carrie isn’t really evil. An overzealous religious mother and cruel high school classmates can make anyone mad and go on a path of murder and destruction.