The compound adjective 'yellow-flowered' is a transparent English formation built from native and borrowed elements. The color term 'yellow' descends from the Old English 'geolu', a Germanic word with ancient roots linking it to brightness and gold. The noun 'flower' entered English via Old French from the Latin 'flos', which itself derives from the Proto-Indo-European root bhel-, meaning 'to thrive, bloom'. The adjectival suffix '-ed' is a versatile Germanic element used to create descriptive terms meaning 'possessing' a certain feature. Thus, the word's logic is straightforwardly literal: it describes a plant characterized by possessing blossoms of a bright, golden hue.

Structure: yellow (color) + flower (blossom) + ed (adjective suffix) - yellow: From Old English 'geolu', of Germanic origin, related to 'gold'. Functions as a color adjective. - flower: From Old French 'flour', from Latin 'flos, flor-', meaning 'blossom'. Functions as a noun root. - ed: A productive English suffix forming adjectives from nouns, meaning 'having' or 'characterized by'.