Describing flowers where the stamens (male parts) are arranged differently or variously compared to typical patterns.
From Greek allagē (change) + stemon (stamen) + -ous (adjective suffix). A specialized botanical term from the 19th century describing stamen arrangements.
Botanists had to invent words like this because flowers can arrange their reproductive parts in wildly different ways—some circle around, others cluster in odd spots—and scientists needed precise language to catalog all this variation.
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