Jie Mei Xu

Allium yongdengense is a plant species native to the Gansu and Qinghai regions in China. Allium yongdengense has a cluster of narrow bulbs each up to 5 mm in diameter. Scape is generally less than 20 cm tall. Leaves are shorter than the scape, about 1 mm across. Umbels have only a few purplish flowers.

Allium yanchiense is a plant species endemic to China, reported from Gansu, Hebei, Nei Mongol, Ningxia, Qinghai, Shaanxi and Shanxi. It grows at elevations of 1300–2000 m. Allium yanchiense has clusters of egg-shaped bulbs each up to 20 mm in diameter. Scape is up to 40 cm long, round in cross-section. Leaves are tubular, about 2 mm across, shorter than the scape. Umbel is spherical, crowded with many white or pinkish flowers.

Allium rude is a Chinese species of wild onion native to Gansu, Qinghai, Sichuan, and Tibet, at elevations of 2700–5000 m. Allium rude produces one egg-shaped bulb up to 15 mm in diameter. Scape is up to 70 cm long, round in cross-section. Leaves are flat, long and narrow, usually shorter than the scape, up to 10 mm across. Umbels are spherical with large numbers of yellow flowers crowded together.

Allium aciphyllum, cammon name 针叶韭 zhen ye jiu, is a plant species native to Sichuan Province in China. It is found on slopes at elevations of 2000–2100 m. Allium aciphyllum produces egg-shaped bulbs up to 10 mm in diameter. Scape is round in cross-section, up to 25 cm long, covered with leaf sheaths in lower portion. Leaves are about the same length as the scape. Flowers are pink.

Allium xichuanense is a plant species native to the Sichuan and Yunnan regions in southern China. It grows at elevations of 3100–4400 m. Allium xichuanense has a single egg-shaped bulb up to 12 mm in diameter. Scape it up to 40 cm tall, round in cross-section. Leaves are tubular, up to 4 mm in diameter, about the same length as the scape. Umbel spherical, densely crowded with many yellow flowers.

Allium xiangchengense is a plant species endemic to the Sichuan region in southern China. It grows there at an elevation of approximately 3300 m. Allium xiangchengense has thick, fleshy roots and clumps of narrow bulbs each less than 5 mm across. Scape is up to 30 cm tall, round in cross-section. Leaves are flat, lanceolate, narrowing toward the tip, up to 2 cm across at the widest point, shorter than the scape. Umbel is spherical. Tepals are white, sometimes 2-lobed.

Allium taishanense is a plant species endemic to the Shandong region of China. It occurs there on hillsides at elevations of 300–600 m. Allium taishanense has narrow bulbs usually less than 5 mm in diameter. Scape is up to 30 cm tall, 2-angled with small teeth along the angles. Leaves are flat, up to 10 mm wide, tapering at both ends, usually shorter than the scape. Umbel is hemispheric, with many pink or white flowers crowded together.

Allium siphonanthum is a plant species endemic to Yunnan Province in southern China. It grows on hillsides at an elevation of approximately 2800 m. Allium siphonanthum has bulbs up to 15 mm across. Scape is up to 60 cm tall, round in cross-section. Leaves are long and very narrow, about the same length as the scape but only about 3 mm across, often drooping under its own weight. Umbel is spherical, with a dense cluster of many reddish-purple flowers.

Allium songpanicum is a plant species endemic to Sichuan Province in southern China. It grows in forests and brushlands at an elevation of approximately 1600–1700 m. Allium songpanicum has bulbs up to 15 mm across. Scape is up to 20 cm tall, round in cross-section. Leaves are long and very narrow, about the same length as the scape but only about 3 mm across, often drooping under its own weight. Umbel has only a few reddish-purple flowers.

Allium guanxianense is a plant species endemic to Sichuan in China. It is found on damp slopes at elevations of 1,800–2,000 m (5,900–6,600 ft). Allium guanxianense has thick fleshy roots but thin bulbs rarely more than 10 mm (0.39 in) across. Scapes are up to 60 cm (24 in) tall, round in cross-section. Leaves are flat, narrowly oblanceolate, shorter than the scape and 2–3 cm (0.79–1.18 in) wide. Umbel is spherical, with white flowers.

Allium grisellum is a plant species endemic to Xinjiang. It is known from one location in a meadow near Toksun Xian, southeast of Urumqi, at an elevation of about 300 m. Allium grisellum forms clumps of egg-shaped bulbs about 10 mm across. Scapes are up to 20 cm tall, round in cross-section. Leaves narrow, about as long as the scape but only 10–15 mm wide. Umbels have only a few flowers; tepals white with a purple midvein.

Allium chienchuanense is a plant species endemic to the province of Yunnan in southern China. It grows on stream banks at elevations of about 3100 m. Allium chienchuanense produces bulbs up to 3 cm in diameter. Scape is up to 80 cm long, and round in cross-section. Umbel is spherical with many yellow flowers.

Allium changduense is a plant species native to the Chinese provinces of Sichuan and Xizang (Tibet). It grows at elevations of 3200–4500 m. Allium changduense has narrow, cylindrical bulbs less than 10 mm across. Scapes are up to 20 cm tall, round in cross-section. Leaves are very narrow, shorter than the scape. Umbels are small, with reddish-purple flowers.

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Allium trifurcatum is a plant species native to the Sichuan and Yunnan regions in southern China. It grows at elevations of 3000–4000 m. The Tibetan people of Shangri-La and nearby areas eat its scapes. Allium trifurcatum has thick roots and clusters of bulbs. Scape is up to 20 cm tall, round in cross-section. Leaves are flat, up to 10 mm across, shorter than the scape. Umbels have only a few white flowers.

Allium maowenense is a plant species endemic to the Sichuan region of China. It grows there at elevations of 1100–1500 m. Allium maowenense has egg-shaped bulbs up to 2 cm in diameter. Scape is up to 60 cm tall. Leaves are hollow, tubular, shorter than the scape. Umbels are spherical, packed with many flowers; tepals white with pink or green midveins.

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