The Asparagus bean

Vigna unguiculata ver. sesquipedalis

  • The Asparagus bean
  • The Asparagus bean
  • Flower name
    The Asparagus bean
  • Scientific name
    Vigna unguiculata ver. sesquipedalis
  • Alias十六大角豆, フーロー豆, 風郎豆, フウロー豆, 長ささげ, 十八ささげ, 十八豆, 三尺ささげ, ふろう豆, Asparagus bea, yardlong bean, pea bean, long-podded cowpea, Chinese long bean, snake bean, bodi, bora, 長豇豆
  • Place of originAfrica
  • Place of floweringField
  • Flowering seasonJune, July

What is The Asparagus bean

The Asparagus bean (scientific name: Vigna unguiculata var. sesquipedalis) is an annual climbing herb of the legume family (Fabaceae), genus Vigna, native to Africa.
Its pods and seeds are edible, and it is a relative of the cowpea cultivated as a vegetable.

It is also known as Jūroku-sasage (十六大角豆, Fūro-mame (風郎豆, フウロー豆), “naga-sasage” (“long cowpea”), “jūhachi-sasage” (“eighteen cowpea”), “jūhachi-mame” (“eighteen bean”), “sanshaku-sasage” (“three-shaku cowpea”), “furō-mame”, “horo-mame”; and in English as yardlong bean, pea bean, long-podded cowpea, Chinese long bean, snake bean, bodi, and bora.

The plant height is 2–4 m.
Being a climbing plant, it twines around supports such as corn stalks or trellises.
The leaves are green, trifoliate, and entire-margined.
Corolla shape: papilionaceous; flower color: white to pale purple; pollinated by insects such as wasps and ants.
Pod length: 35–75 cm; pod color: green or purple; bean color: reddish-brown; edible: yes.

The long pods come in green and purple, have a flavor similar to that of common beans (Phaseolus vulgaris), and in Okinawa are considered a typical summer vegetable alongside bitter melon (goya).
They are used in raw preparations, stir-fries, stews, tempura, and other dishes, and the dried beans are used in red rice (sekihan).

Flower language
“Dreamlike feeling” (Yume-gokochi).

Origin of the name
The genus name Vigna is dedicated to the British natural scientist Dr. D. Vigna.
The specific epithet “unguiculata” means “claw-shaped.”
The varietal name “sesquipedalis” comes from Latin meaning “one and a half feet,” referring to the extremely long pods.

When young, the pods point upward, hence the association with “sasage” (meaning “to offer up”).
The name “jūroku-sasage” (“sixteen cowpea”) comes from the fact that there are usually sixteen beans inside each pod.

Common name:The Asparagus bean
Scientific name: Vigna unguiculata var. sesquipedalis
Other names: Jūroku-sasage (十六大角豆), Fūro-mame (風郎豆, フウロー豆), “naga-sasage,” “jūhachi-sasage,” “jūhachi-mame,” “sanshaku-sasage,” “furō-mame,” “horo-mame”
English names: asparagus bean, yardlong bean, pea bean, long-podded cowpea, Chinese long bean, snake bean, bodi, bora
Origin: Africa
Cultivation in Japan: Nago City, Okinawa Prefecture (Fūro-mame); Ōtoyo Town, Kōchi Prefecture (Gin-furō-mame)
Classification: Kingdom Plantae; Order Fabales; Family Fabaceae; Genus Vigna; Species Vigna unguiculata; Variety Jūroku-sasage
Plant height: 2–4 m; twines around supports, trellises, or corn
Leaf color: green; leaf type: trifoliate; leaflet shape: triangular
Corolla shape: papilionaceous; flower color: white to pale purple; peduncle: long; flowers per node: solitary or in pairs; pollinated by insects such as wasps and ants
Pod length: 35–75 cm; pod shape: cylindrical; pod color: green or purple
Bean color: reddish-brown; seed shape: kidney-shaped; edible: yes


  • Order
    Fabales
  • Family
    Fabaceae
  • Genus
    Vigna
  • Species
    V. unguiculata var. sesquipedalis
  • Type of flower
    Left-right symmetrical flower
  • Array of flower
    Gross inflorescence
  • Petal shape
    Butterfly shape
  • Leaf type
    3-fold compound leaf
  • Edge of the leaf
    Entire
  • Life typeannual grass vegetable
  • Flower colorsPink Purple White
  • Colors of the leavesGreen
  • Fruit colorRed
  • Height200.0 ~ 400.0 cm
  • Diameter of flower1.5 ~ 2.0 cm

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