长豇豆Vigna unguiculata (Linn.) Walp. subsp. sesquipedalis (Linn.) Verdc.

别名：黑眼豆、黑脐豆，饭豆、虹豆

科名：豆科 Leguminosae

属名：豇豆属 Vigna

《中国植物志》第41卷290页
  15b.长豇豆（中国蔬菜栽培学）豆角（通称），尺八豇 图版69
  subsp. sesquipedalis (Linn.) Verdc. in Davies, Fl. Turkey 3:266. 1970, et in Kew Bull. 24: 544. 1970.——Dolichos sesquipedalis Linn. Sp. Pl. ed. 2, 1019. 1763.——Vigna sinensis (Linn.) Hassk. var. sesquipedalis (Linn.) Aschers. et Schweinf. Ill. Fl. Egypt in Mem. Ist. Egypt. 2: 69. 1889.——V. sesquipedalis (Linn.) Fruhw. Anbau Hulsenfr. 254. 1898;中国主要植物图说·豆科719. 1955.——V. sinensis (Linn.) Hassk. subsp. sesquipedalis (Linn.) Van Eseltine in Hedrick, Veg. New York 1(2):11. 1931.——V. sesquipedalis (Linn.) Verdc. var. sesquipedalis (Linn). Ohashi in Fl. E. Him. 3: 71. 1975: Hara et Williams, Enum. Fl. Pl. Nepal. 2:133. 1979.
  一年生攀援植物，长2-4米。荚果长30-70（-90）厘米，宽4-8毫米，下垂，嫩时多少膨胀；种子肾形，长8-12毫米。花、果期夏季。
  我国各地常见栽培．非洲及亚洲的热带及温带地区均有栽培。
  嫩荚作蔬菜，品种依荚的色泽可大致为白皮种（淡绿色）、青皮种、红皮种及斑纹种四种。

《Flora of China》 Vol. 10 (2010)
Vigna unguiculata subsp. sesquipedalis  (Linnaeus) Verd-court in P. H. Davis Fl. Turkey. 3: 266. 1970.
长豇豆   chang jiang dou
Dolichos sesquipedalis Linnaeus, Sp. Pl., ed. 2, 2: 1019. 1763; Vigna sinensis subsp. sesquipedalis (Linnaeus) Van Esel-tine; V. sinensis var. sesquipedalis (Linnaeus) K?rnicke ex Ascherson & Schweinfurth.
Twining herbs, 2-4 m. Legumes 30-80(-90) cm, pendu-lous, slightly fleshy and inflated when young. Seeds 8-12 mm. Fl. and fr. Jun-Aug.
Widely cultivated in China [native to tropical Asia; widely culti-vated in tropical regions of Asia, Africa, and America].
Dolichos sesquipedalis was originally described from material of American origin, but this was presumably cultivated material originally introduced from tropical Asia as all related taxa are from the Old World.Dolichos sesquipedalis was originally described from material of American origin, but this was presumably cultivated material originally introduced from tropical Asia as all related taxa are from the Old World.