Nudicaule is a word that refers to a specific type of plant with vibrant red or orange flowers. If you're looking for synonyms for nudicaule, you might use the scientific name of the plant, Papaver nudicaule, or refer to the plant by its common name, the Arctic poppy. Other words that could be used as synonyms for nudicaule might include wildflower, mountain poppy, or alpine poppy. The important thing when searching for synonyms is to find words that convey the same meaning and help your audience understand the message you're trying to convey.