植物茎分枝结构决定了不同植物的不同形态结构。
The diversified architecture of plants is determined primarily by the pattern of shoot branching.
刺，例如山楂树上的刺，实际上是一种改良的分枝，它会从木本植物的茎和分枝中生长出来。
Thorns, like those found on the Hawthorn tree, are modified branches that project from the stem and branches of a woody plant.
几乎没有茎，少分枝。
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