Ginger flower (Latin name: HedychiumcoronariumKoen), also known as wild ginger flower, is a freshwater herb of the genus Zingiberaceae, with a height of 1-2 meters, a spike-shaped inflorescence with tubular calyx, alternate leaf sequences, long and narrow leaves, sharp ends, bald leaves and slightly thin hairs on the back of leaves. Not cold-tolerant, like warm winter and humid summer environment, poor drought resistance, suitable for semi-shade in the early stage of growth, and sufficient sunshine in the vigorous stage.

The soil should be fertile and have strong moisture retention. Ginger flower has a fresh fragrance and can be used as a natural air freshener indoors. Round color, generally white flowers. Potted plants are available for viewing, and white flowers are like butterflies, so they are also called butterfly ginger and white iris. Originated in tropical Asia, Indian and Malaysian tropical regions, it was probably introduced to China in Qing Dynasty. In addition, ginger flower is the national flower of Cuba and Nicaragua.

Stem height1-2m. The leaf blade is oblong-lanceolate or lanceolate, 20-40 cm long and 4.5-8 cm wide, with a long tapering tip, an acute base, a smooth leaf surface and a pubescent back; Sessile; Ligule membranous, 2-3 cm long.

Spike terminal, oval, long10-20cm, wide 4-8cm; Bracts are imbricate-shaped, oval, 4.5-5 cm long and 2.5-4 cm wide, with 2-3 flowers in each bract; The flowers are fragrant and white, the calyx tube is about 4 cm long, and the top side is cracked; Corolla tube is slender, 8 cm long, lobes lanceolate, about 5 cm long, and 1 piece at the back is pocket-shaped with a small tip; Lateral staminodes are oblong-lanceolate, about 5 cm long; Lip inverted heart-shaped, about 6 cm long and wide, white, slightly yellow at the base, 2-lobed at the top; Filaments are about 3 cm long and anther locules are 1.5 cm long; Ovary is sericeous.