Anonymous
Anonymous asked in Science & MathematicsBotany · 1 decade ago

Explain the difference between thorns, spines, and prickles.?

10 Answers

Relevance
  • Anonymous
    1 decade ago
    Favorite Answer

    Thorns Spines and Prickles have only one thing in common viz. they are all very sharp pointed and helpful as a defense mechanism.

    Now let us see the differences ( All Botanical)

    1) Spines = these are all modified LEAVES; i.e. the leaves are turned in to or reduced to spines. Very good example is Cactus. In all cacti the stem does the function of photosynthesis (Phylloclade) and the leaves are turned in to spines to reduce the rate of transpiration and also act as defense mechanism against animals.They are seen at the node where a leaf is expected

    2) Thorns = These are all modified branches ( i.e. stem modification). They either develop from terminal or axillary buds.. They are also used for defense.They are seen only at the node of the plant.They are endogenous in origin i.e. from the vascular tissue.Examples are Pomegranate, Bougainvillea

    3) Prickles = These are NOT modifications of any existing organ of a plant. They are entirely new organs ( "Organa de novo" as said in Latin).They are found any where and indiscriminately on the plant( Stem , leaves ) . They are exogenous in origin ( develop from epidermal tissue only). Therefore they break off easily. Rose is an excellent example.

    Source(s): From A Botanist of Repute.
    • Commenter avatarLogin to reply the answers
  • Anonymous
    5 years ago

    This Site Might Help You.

    RE:

    Explain the difference between thorns, spines, and prickles.?

    Source(s): explain difference thorns spines prickles: https://tr.im/bazyB
    • Commenter avatarLogin to reply the answers
  • evans
    Lv 4
    4 years ago

    Define Prickle

    • Commenter avatarLogin to reply the answers
  • 1 decade ago

    prickle – a sharp outgrowth from the epidermis, also called an emergence and usually involving some subdermal tissue as well; see also hair.

    spine – a modified stipule or sharp branchlet found in a leaf axil or on the margin of a leaf.

    thorn – Sharp outgrowth from a stem other than at a node; a modified stem.

    • Commenter avatarLogin to reply the answers
  • How do you think about the answers? You can sign in to vote the answer.
  • ~tn~
    Lv 4
    1 decade ago

    prickle – a sharp outgrowth from the epidermis, also called an emergence and usually involving some subdermal tissue as well; see also hair.

    spine – a modified stipule or sharp branchlet found in a leaf axil or on the margin of a leaf.

    thorn – Sharp outgrowth from a stem other than at a node; a modified stem.

    • Commenter avatarLogin to reply the answers
  • 1 decade ago

    Botanically:

    prickle: a hard, sharp emergence of subepidermal tissue (*not* vascular)

    spine: a stiff process with a sharp point derived from subepidermal tissue

    thorn: a reduced branch with a sharp, hard point (this *is* vascular)

    Roses do not have thorns but prickles.

    • Commenter avatarLogin to reply the answers
  • blanga
    Lv 4
    4 years ago

    Thorn Definition

    • Commenter avatarLogin to reply the answers
  • Louise
    Lv 4
    4 years ago

    For the best answers, search on this site https://shorturl.im/axCkM

    As a generalisation,most cultivated roses have thorns.Exceptions to the rule are "Zephirine Drouhin",the thornless rose and many of the Moss roses which bear a "fuzz" of fine prickles.

    • Commenter avatarLogin to reply the answers
  • 1 decade ago

    here are the definition from the Oxford Advanced Learner's Dictionary:-

    thorn= a small sharp pointed part on the STEM of some plants, such as ROSE.

    spine= any of the shape pointed parts like NEEDLES on some plants and animals. (eg: PORCUPINE)

    prickle= a small sharp part on the STEM of LEAF of a plant or on the SKIN of some animals. (eg: on CACTUS)

    their meaning sounds the same...

    but they are very SPECIFIC...

    imaging the ROSE, PORCUPINE, and CACTUS...

    and you will find the tiny difference between them...

    Source(s): OXFORD Advanced Learner's Dictionary
    • Jasen5 years agoReport

      Meatloaf is not skilled in botany. every rose does not have a thorn.

    • Commenter avatarLogin to reply the answers
  • 1 decade ago

    thorns are small spiked hard brown things

    spines are more longer and flexible

    prickles are short sharp objects

    • Commenter avatarLogin to reply the answers
Still have questions? Get your answers by asking now.