Hadleya

Could you clarify what “Hadleya” refers to? I don’t have a widely recognized subject by that name. If you specify, I can write a concise, neutral wiki-style article under 300 words. Options include:

- a real subject (for example, a plant genus, a place, a historical figure) with factual details

- a fictional or world-building concept (clearly labeled as fictional, with plausible, encyclopedic tone)

If you’d like, I can also draft a generic disambiguation-style stub outlining possible uses of the name.