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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.
Hatiora salicornioides, the bottle cactus, dancing-bones, drunkard's-dream, [3] or spice cactus, [4] is a species of flowering plant in the cactus family. A member of the tribe Rhipsalideae , it often grows as an epiphyte , natively in eastern Brazil and ornamentally elsewhere.
Euphorbia tithymaloides has a large number of household names used by gardeners and the public. Among them are redbird flower, [7] devil's-backbone, [8] redbird cactus, Jewbush, buck-thorn, cimora misha, Christmas candle, fiddle flower, ipecacuahana, Jacob's ladder, Japanese poinsettia, Jew's slipper, milk-hedge, myrtle-leaved spurge, Padus-leaved clipper plant, red slipper spurge, slipper ...
Collectively, opuntias, chollas, and related plants are sometimes called opuntiads. [2] The roughly 35 species of Cylindropuntia are native to the southwestern and south-central United States, Mexico, and the West Indies. The Flora of North America recognizes 22 species. [3]
The species name is taken from the Latin words spina meaning thorn or spine and escens meaning beginning. The name refers to the branches ending with a sharp point or spine. [1] The species was named by George Bentham in 1842 as part of the William Jackson Hooker work Notes on Mimoseae, with a synopsis of species published in the London Journal ...
The Chorizanthe rigida plant, is a short, erect and sometimes single-stalked, but multi-stalked to 5 stalks or more, 2.5-2.5–6.0 inches (1–2 dm) in height. It grows quickly, especially following spring rains. With the onset of early summer it turns into a spine-skeleton.
The saguaro is a columnar cactus that grows notable branches, usually referred to as arms.Over 50 arms may grow on one plant, with one specimen having 78 arms. [6] Saguaros grow from 3–16 m (10–52 ft) tall, and up to 75 cm (30 in) in diameter.
As suggested by the Latin name, the spiny branches of this shrub were thought to be used to make the crown of thorns placed on Jesus' head before his crucifixion. Ziziphus spina-christi, the Christ's thorn jujube, is also identified as being used for the crown of thorns.