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Cantonese: The branches and leaves of Fosuang (Hibiscus rosa-sinensis) resemble those of the mulberry tree; its flowers are cinnabar-red, named Zhujin (Chinese Hibiscus), also known as Fusang, or Fusang. The double-flowered variety is called Ailao, and it is often used as a vegetable.

Bencao Gangmu (Compendium of Materia Medica) has a section on Fusang after Mu Jin (Hibiscus mutabilis), but only records external treatments; therefore, this entry supplements that information.

Wu Zhenfang in Lingnan Zaji (Records of Lingnan): Fusang grows everywhere in Guangdong. Its leaves resemble mulberry leaves but are slightly smaller. There are three colors: large red, light red, and yellow. The larger blooms are like peonies when fully open; they open in the morning and fall by evening, yet bloom again after falling, continuing from March to October without cessation. Fosuang is very similar to Fusang, but the center rises like a tower, with an extra layer of petals. Nowadays, people confuse Fusang and Fosuang, which is incorrect. To restore black color to gauze or satin that has faded to yellow after dyeing, crush Fusang flowers, extract the juice, and apply it; the fabric returns to its original blackness. It moistens the face and nourishes blood (according to Cantonese usage). It beautifies the complexion and nourishes blood (Chen Shuzhai's Suoyu: Steamed Chinese Hibiscus flowers eaten with vinegar; women in Guangdong often use this method to enhance their appearance).

Zhao Xuemin notes:
Notes from Liangguang (Guangdong and Guangxi) record that the bark of Zhujin and Fosuang differs slightly. It states that Zhujin is also called Rijí (Sun-arriving) or Shunying, with leaves resembling mulberry leaves, smooth, lustrous, and dense. The plant is only four or five chi tall, with graceful branches. From mid-spring to mid-winter, hundreds of flowers bloom daily on one clump, opening in the morning and falling by evening. The deep red flowers have five petals, are as large as Malva alcea (mallow), with curled petals appearing to fly upward, layered like a pagoda. There is a single stamen slightly longer than the petals, tipped with golden dust that sparkles in sunlight, resembling flames. Women in Guangdong cultivate it extensively, and it propagates easily from cuttings. Su Dongpo’s poem "Yanyan shao kong hong Fosuang" (Flames burning the sky, red Fosuang) refers to Zhujin. However, Fosuang also comes in dark red, water-red, yellow, and purple varieties, slightly smaller than Zhujin, and is called "Little Peony." It blooms in all four seasons. The white variety is used as a vegetable, sweet and delicious, especially suitable for women to eat. According to Chen Shuzhai, Fosuang and Zhujin are of the same category but distinct species; their functions are likely not far apart, hence Cantonese usage considers them identical. Here, I append their functions together to supplement what Li Shizhen omitted.