The measure word for flowers is 朵 (duǒ), one of the more specific Chinese measure words. 一朵花 (a flower), 一朵云 (a cloud) — 朵 is used for flowers and clouds.
culture
Different flowers carry different meanings in Chinese culture: 牡丹 (mǔdān, peony) symbolizes wealth and honor; 梅花 (méihuā, plum blossom) symbolizes resilience; 荷花 (héhuā, lotus) symbolizes purity.