A plant with seed pods that are hollow and inflated like tiny balloons, helping the seeds float and spread through water or wind.
From Old English 'blædre' (bladder) + 'sæd' (seed). The compound describes plants whose seeds develop inside air-filled sacs, a feature that evolved to aid in seed dispersal across distances.
Nature's version of bubble wrap! Plants that evolved these balloon-like seed cases could reach new territories by floating on water or being carried by wind, giving them a survival advantage over competitors.
Complete word intelligence in one call. Free tier — 50 lookups/day.