Do leaves really always have an axillary bud at the base?

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SUMMARY

Leaves typically possess an axillary bud at the base where the petiole connects to the stem. However, if the axillary bud develops into a stem or branch, it may appear that the leaf lacks an axillary bud. This confusion often arises between compound leaves and branches, with the presence of the bud serving as a definitive indicator of a leaf's identity. Understanding this distinction is crucial for accurate botanical classification.

PREREQUISITES
  • Botanical terminology related to leaf structure
  • Knowledge of plant anatomy, specifically axillary buds
  • Understanding of compound leaves versus branches
  • Familiarity with plant growth patterns and development
NEXT STEPS
  • Research the role of axillary buds in plant growth and development
  • Study the differences between compound leaves and simple leaves
  • Explore the classification of plant structures in botany
  • Learn about the developmental stages of buds and their transformations
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Botanists, horticulturists, and students of plant biology seeking to deepen their understanding of leaf morphology and plant structure classification.

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TL;DR
Plant morphology.
Would love some insight: We're always taught that you can tell a leaf by the axillary bud where the petiole connects to the stem. But what if the axillary bud has developed into a stem/branch? Would it be correct to say that leaves often lack axillary buds at their junction with the stem (maybe one used to be there, but later developed into a stem/branch)?

Thanks!
 
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Not really correct, at least as you worded it. Sometimes (often) people confuse compound leaves with a branch, which may be what you are considering. The bud in the mode is the giveaway.
 

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