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What are thorns and prickles in plant morphology?
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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.
Thorns are modified branches or stems. Spines are modified leaves and prickles are simply extension of the plant cortex and epidermis. Unlike spines, thorns are deeply seated and have connection with vascular tissues. Thorns are formed from deeply seated tissues of the plant.
Thorns are the ends of branches that are hard and sharp. Spines are hard structures with sharp ends. There are many different kinds of spines. Some are on leaves, and some grow instead of leaves. Prickles are on the outside of stems.
Oct 16, 2023 · 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 deterring animals from eating the plant material.
Jul 22, 2020 · What I saw was both beautiful and instructive: Spines, thorns, and prickles are surprisingly different structures, even though they all serve a similar purpose. The stem of Ceiba insignis (silk floss tree), in the Desert Garden, showing bark with prickles.
Jun 9, 2024 · They are thorns, spines, and prickles. Thorns are the ends of branches that are hard and sharp. Spines are hard structures with sharp ends. There are many different kinds of spines, some on leaves, some grow instead of leaves. Prickles are on the outside of stems.
Thorns are just one name for the sharp projections produced by plants, with prickles and spines being more common. Read on to find out what separates a thorn from a prickle and how best to manage these precarious plants all year long.
