1. Appearance: stone cauliflower's stems and leaves are green, while lobelia's stems and leaves are red. The flowers of rockcress are also green, while the flowers of lobelia are red.

2. Nutritional value: stone cauliflower is rich in vitamins, proteins, dietary fiber, carbohydrates, minerals and other nutrients, while lobster is mainly rich in protein, vitamins, dietary fiber, carbohydrates, minerals and other nutrients.

3. Efficacy: stone cauliflower has the effect of clearing away heat and dampness, cooling the blood and stopping bleeding, detoxification and swelling, which can alleviate the symptoms of damp-heat jaundice, blood drenching, stonelike drenching, feverish sores and carbuncles, and bruises and other symptoms. While Longshoucai has the effect of clearing heat and dampness, cooling blood and stopping bleeding, and can relieve symptoms of damp-heat gonorrhea, hemorrhagic gonorrhea, collapse, and blood in the stool.

4. Growing environment: stone cauliflower grows in the middle of the sea and sand, while longbeard grows on coral reefs.

5. Alias: Stone cauliflower is also known as sea jelly cabbage, phoenix tail, etc., while longbeet is also known as unicorn cabbage.