Adina racemosa

Adina racemosa or Hetsuka-nigaki(scientific name: Adina racemosa) is a deciduous broad-leaved tree of the family Rubiaceae, consisting of one genus and one species. It is native to China, Japan, Taiwan, Thailand, Burma, and other East Asian countries. In Japan, it grows naturally in warm-temperate forests in Shikoku, Kyushu, and the Ryukyu Islands. It is called "hetsuka" in Japanese because it was discovered in hetsuka in the Okuma Peninsula of Kyushu, and "nigaki" because the wood and leaves have a bitter taste. The tree is 4 to 12 meters tall and has grayish bark. The leaves are green with long petioles, broadly ovate, and attached in opposite pairs on the branches. 3 to 10 globose cephalic inflorescences are produced in June to July in clusters. The flowers are pale yellow and funnel-shaped with five shallow lobes at the tip. A long pistillate flower column protrudes from the corolla. After the flower, a capsule is produced. The species name "racemosa" means "racemous inflorescence.

Common name: Adina racemosa or Hetsuka-nigaki(scientific name: Adina racemosa) is a deciduous broad-leaved tree of the family Rubiaceae, consisting of one genus and one species. It is native to China, Japan, Taiwan, Thailand, Burma, and other East Asian countries, height: 4 to 12 m, bark color: gray, leaf color: green, petiole length: 3 to 6 cm, leaf shape: broadly ovate, leaf length Leaf length: 7-15 cm, leaf width: 5-10 cm, leaf margin: entire, inflorescence diameter: 1.5 cm, corolla shape: 3-10 globose cephalic inflorescences arranged in clusters, corolla color: light yellow, corolla shape: funnel-shaped with 5 shallow lobes at the tip, corolla length: 0.5 cm, stamens: 5, flowering season: June - July, fruit: capsule, seeds: winged at both ends, uses: park and garden trees Park and garden trees.

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