The botanical term “spur” is given to outgrowths of tissue on different plant organs. The most common usage of the term in botany refers to nectar spurs in flowers.
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nectar spur
A nectar spur is a hollow extension of a part of a flower. The spur may arise from various parts of the flower: the sepals, petals, or hypanthium, and often contain tissues that secrete nectar (nectaries). Nectar spurs are present in many clade ...
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spur (stem)
Spurs are short, slow growing stems with greatly shortened internodes that can bear leaves, flowers and fruit. Spurs are perennial growths and commonly arise from the leaf axils on shoots.
They are common in fruit trees such as Apple, Pear, Plum a ...
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spur (leaf)
A spur is a metal instrument fastened to the heel of a horse rider.
Spur or Spurs may also refer to:
Medicine
* Bone spurs, a skeletal disorder forming small bony outgrowth along joint margins
** Heel spur, a thin spike of calcification in the ...
See also
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Fascicle
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Sepal
A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined ...
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Petal
Petals are modified leaves that surround the reproductive parts of flowers. They are often brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corolla''. Petals are usuall ...
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Tepal
A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of very ...
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Calyx
Calyx or calyce (plural "calyces"), from the Latin ''calix'' which itself comes from the Ancient Greek ''κάλυξ'' (''kálux'') meaning "husk" or "pod", may refer to:
Biology
* Calyx (anatomy), collective name for several cup-like structures ...
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Corolla
Corolla may refer to:
*Corolla (botany), the petals of a flower, considered as a unit
*Toyota Corolla, an automobile model name
* Corolla (headgear), an ancient headdress in the form of a circlet or crown
* ''Corolla'' (gastropod), a genus of moll ...
Plant anatomy
Plant morphology
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