phyllotaxis
Noun
Meaning
The order or arrangement of leaves on the stem; the science of the relative position of leaves.
Source: Webster's dictionaryExamples
The phyllotaxis is usually decussate, rarely whorled (e.g. Fadogia ), or rarely alternate resulting from the suppression of one leaf at each node (e.g. Sabicea sthenula).
This may be why angles close to the golden ratio often show up in phyllotaxis (the growth of plants).