'broad-podded' originates from English, specifically a compound of the words 'broad' and 'podded', where 'broad' meant 'wide' and 'pod' meant 'a seed vessel (pod)'.

'broad-podded' formed in modern English as a descriptive compound adjective. 'Broad' comes from Old English 'brād' meaning 'wide', while 'pod' comes via Middle English 'podde'/'podd(e)' meaning 'seed vessel' and the adjectival form 'podded' is formed by adding '-ed' to the noun.

Initially it literally meant 'having wide pods' and over time has remained a literal, botanical description with the same core sense.