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India (N); Andhra Pradesh; Arunachal Pradesh ; Assam; Bihar ; Gujarat ; Haryana ; Himachal Pradesh; Karnataka; Kerala; Madhaya Pradesh; Manipur ; Meghalaya ; Nagaland; Orissa; Punjab; Rajasthan; Sikkim ; Tamil Nadu; Uttar Pradesh; West Bengal & other countries as per ILDIS
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Vigna umbellata (Thunb.) Ohwi and Ohashi, previously Phaseolus calcaratus, is a warm-season annual vine legume with yellow flowers and small edible beans. It is commonly called ricebean or rice bean. To date, it is little known, little researched and little exploited. It is regarded as a minor food and fodder crop and is often grown as intercrop or mixed crop with maize (Zea mays), sorghum (Sorghum bicolor) or cowpea (V. unguiculata), as well as a sole crop in the uplands, on a very limited area. Like the other Asiatic Vigna species, ricebean is a fairly short-lived warm-season annual. Grown mainly as a dried pulse, it is also important as a fodder, a green manure and a vegetable. Ricebean is most widely grown as an intercrop, particularly of maize, throughout Indo-China and extending into southern China, India, Nepal and Bangladesh. In the past it was widely grown as lowland crop on residual soil water after the harvest of long-season rice, but it has been displaced to a great extent where shorter duration rice varieties are grown. Ricebean grows well on a range of soils. It establishes rapidly and has the potential to produce large amounts of nutritious animal fodder and high quality grain.

The English language name is a literal translation of the Chinese language name (Chinese: 飯豆; pinyin: fàndòu).
Ricebean’s distribution pattern indicates great adaptive polymorphism for diverse environments, with its distribution ranging from humid tropical to sub-tropical, to sub-temperate climate. The presumed centre of domestication is Indo-China. It is thought to be derived from the wild form V. umbellata var gracilis, with which it is cross-fertile, and which is distributed from Southern China through the north of Vietnam, Laos and Thailand into Myanmar and India (Tomooka et al., 1991). Studies of the genetic and eco-geographical relationships among the wild relatives of Vigna species were made by Saravanakumar et al. (2001).
Ricebean plays an important role in human, animal and soil health improvement. All varieties seem to be good sources of protein, essential amino acids, essential fatty acids and minerals (Mohan & Janardhanan, 1994), and the dried seeds make an excellent addition to a cereal-based diet.
(from Wikipedia on 25.10.17)
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Vigna umbellata (Thunb.) Ohwi & H.Ohashi : 3 posts by 2 authors. Attachments (8)

Location: Gyaneswor, Kathmandu, Nepal 
Date: 13 October  2017
Altitude: 4400 ft.
​​​​​​​​​​​​​​Nepali Name : मस्याङ्ग Masyaang


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Vigna umbellata (Thunb.) Ohwi & H.Ohashi. ?? : 3 posts by 2 authors. Attachments (5)- around 1 Mb or more each.
Location:  Chumlingtar, Chitwan, Nepal 
Date: 06 October 2018
Elevation: 1000 ft.
Habit : Cultivated

To me also appear close to images at /species/a—l/f/fabaceae/vigna/vigna-umbellata


Please identify the weed plant.
Location:  near Reserve Forest, Chathamattom, Ernakulam District, Kerala PIN:686671
Date:.               08.11.2020, 08.45am
Altitude:           1700fsl
Habitat:            wild moisture
Plant habit:      climbing annual weak stem
Height:             02 meters
Leaves:            alternative oval apex
Flower:             diameter: 12 mm, yellow non fragrant

Vigna angularis ??


The plant’s stem is purple, in Keralaplants.in it is umbellata. 


 


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Fabaceae-Faboideae (Papilionaceae) Week: Vigna aconitifolia from Chakrata road and Delhi:
Vigna aconitifolia (Jacq.) Maréchal, Bull. Jard. Bot. Natl. Belg. 39:160. 1969
syn: Phaseolus aconitifolius Jacquin

Common names: Mat bean, moth bean
Prostrate herb with trifoliate densely hairy leaves; leaflets palmately lobed; inflorescence raceme on axillary peduncle, 5-6 cm long with yellowish hairs; corolla yellow, 4-5 mm long; pod 5-6 cm long, pubescent when young, finally glabrous.
Cultivated as pulse, photographed from Mussoorie Chakrata road and from Khalsa College, Delhi.

This does not appear to be Vigna aconitifolia as per publication details in Fabaceae-Faboideae (Papilionaceae) Week : Climber/Climbing shrubs : Fwd: PlANT FOR ID 146 SMP OCT 09
Clear image of the stipules may resolve the matter.


Maybe Vigna umbellata (Thunb.) Ohwi & H.Ohashi
Pl. check.


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Fwd: Fabaceae (Faboideae) Fortnight: Vigna aconitifolia from Chakrata road and Delhi-GSOCT89/94 : 2 posts by 2 authors. Attachments (6)
Vigna aconitifolia (Jacq.) Maréchal, Bull. Jard. Bot. Natl. Belg. 39:160. 1969
syn: Phaseolus aconitifolius Jacquin
Common names: Mat bean, moth bean
Prostrate herb with trifoliate densely hairy leaves; leaflets palmately lobed; inflorescence raceme on axillary peduncle, 5-6 cm long with yellowish hairs; corolla yellow, 4-5 mm long; pod 5-6 cm long, pubescent when young, finally glabrous.
Cultivated as pulse, photographed from Mussoorie Chakrata road and from Khalsa College, Delhi.

never seen the bean pods in real life. this is it for me. so thanks


This does not appear to be Vigna aconitifolia as per publication details in Fabaceae-Faboideae (Papilionaceae) Week : Climber/Climbing shrubs : Fwd: PlANT FOR ID 146 SMP OCT 09
Clear image of the stipules may resolve the matter.


 


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References: Catalogue of Life  The Plant List Ver.1.1  ILDIS  India Biodiversity Portal Wikipedia  Feedipedia  Useful Tropical Plants