Bitter ginger

Description

Zingiber zerumbet is a species of plant in the ginger family with leafy stems growing to about 1.2 m (3.9 ft) tall. It originates from Asia, but can be found in many tropical countries. Common names include: awapuhi, bitter ginger, shampoo ginger (Malay = lempoyang) and pinecone ginger. The rhizomes of Z. zerumbet have been used as food flavoring and appetizers in various cuisines while the rhizome extracts have been used in herbal medicine. Zingiber zerumbet is a perennial. From autumn until spring it goes dormant above ground as the leafy stems shrivel and die away, leaving the pale brown, creeping stems (rhizomes) at ground level. In the spring, the plant springs up anew. The 10–12 blade-shaped leaves 15–20 cm long grow in an alternate arrangement on thin, upright stem to 1.2 m (3.9 ft) tall. Among the leafy stems, the conical or club-shaped flower heads burst forth on separate and shorter stalks. These appear in the summer, after the leafy stems have been growing for a while. The flower heads are initially green and are 3 to 10 cm (1.2 to 3.9 in) long with overlapping scales, enclosing small yellowish-white flowers that poke out a few at a time. As the flower heads mature, they gradually fill with an aromatic, slimy liquid and turn a brighter red color. The flower stalks usually remain hidden beneath the leaf stalks. Z. zerumbet is native to tropical Asia and Australasia. The subspecies Zingiber zerumbet subsp. cochinchinense (Gagnep.) Triboun & K.Larsen (previously Z. cochinchinense) is found in Vietnam. Remains of Z. zerumbet have been identified at the Kuk Swamp archaeological site of New Guinea at the Phase 1 layers dated to 10,220 to 9,910 BP. However, whether it was cultivated or merely exploited from the wild is unknown. Like the ginger, the earliest evidence of its cultivation is from the Austronesian peoples who carried it with them during the Austronesian expansion (c. 5,000 BP) as canoe plants, reaching as far as Remote Oceania. The genus Zingiber is native to Southeast Asia especially in Thailand, China, the Indian Subcontinent, and New Guinea. It contains the true gingers, plants grown the world over for their medicinal and culinary value. The most well known are Z. officinale and Z. mioga, two garden gingers.