Resembling or similar to a cactus, though not necessarily belonging to the cactus family.
From Latin 'cactus' combined with Greek '-oid' (resembling or similar to), creating a broader term for cactus-like appearance. This suffix is widely used in scientific terminology to indicate similarity without exact classification.
Cactoid plants from different continents prove that deserts demand the same solutions everywhere—when you need to survive on minimal water, developing thick stems, reduced leaves, and spines is the evolutionary sweet spot, whether you're in Arizona or Madagascar.
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