What key factor contributes to *N. pseudonarcissus* being 'common' in established landscapes over time?

Answer

Its genetic predisposition to spread and naturalize easily.

Species like N. pseudonarcissus fall into Division 12 and possess vigorous genetics that allow them to produce offsets rapidly and survive year after year without intensive care, leading to common naturalization.

What key factor contributes to *N. pseudonarcissus* being 'common' in established landscapes over time?
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