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This species is accepted, and its native range is Tropical & Subtropical Old World.
Bidens biternata (Lour.) Merr. & Sherff

[FTEA]

Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

Morphology General Habit
Annual herb, erect, 0.1–2 m high; stem reddish tinged, 4-angled, simple or branched, pubescent or glabrous.
Morphology Leaves
Leaves opposite or rarely alternate near the apex, broadly ovate in outline, pinnately (3–)5–9-lobed or almost pinnatisect, 3–20 cm long, 2.5–12 cm wide, leaf segments ovate to lanceolate, lobed or bilobed at base, margins crenate-serrate to almost lobulate, apices acute; petiole to 60 mm long.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula in terminal lax paniculate cymes; involucre cup-shaped; outer phyllaries 4–8(–15), linear to oblanceolate, 4–6(–12) mm long, to 20 mm long in fruit, pubescent, inner phyllaries 8–11, yellowish green, with paler margins, 3.5–7 mm long, pubescent; paleae 4.5–6 mm long.
Morphology Reproductive morphology Flowers Florets
Ray florets yellow, rarely orange, neuter or with staminodes, (1–)2–5, tube 0.8–1.3 mm long, pubescent, rays 3–6x1.3–2.5 mm, striate; disc florets yellow to orange-yellow, 3–3.7 mm long, glabrous.
Morphology Reproductive morphology Fruits
Achenes black, 4–8-ribbed, linear-tetragonal, 6–16(–25) mm long, strigose in upper half; aristae (2–)3–4(–5), yellow-brown, 2–4 mm long, retrorsely barbed.
Figures
Fig. 172 (page 805).
Habitat
orest margins, weed of cultivation (especially in maize), ruderal sites, woodland, evergreen bushland, river-banks, grassland; 50–2500 m
Distribution
widespread in tropical and subtropical Africa, Asia and Australia K1 K2 K3 K4 K5 K6 K7 T1 T2 T3 T4 T5 T6 T7

[FWTA]

Compositae, C. D. Adams. Flora of West Tropical Africa 2. 1963

Morphology General Habit
An annual weedy herb
Morphology Reproductive morphology Flowers
Yellow flowers.

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Erect annual herb, 0.5–1 m high
Morphology Leaves
Leaves with petiole 1–4 cm long; blade pinnately (3–)5–9-lobed or partly bipinnatisect, segments glabrescent, ovate or ovate-lanceolate, 1–8 x 1–4.5 cm, crenate-serrate or rarely lobulate-dentate, the terminal segment the longest and widest
Morphology Reproductive morphology Inflorescences
Capitula 5–7 x 5–8 mm at anthesis, up to 25 mm high in fruit
Morphology Reproductive morphology Inflorescences Bracts Phyllaries
Outer phyllaries green, (3–)4–8(–15), linear or oblanceolate, 4–6(–12) mm long, up to 20 mm long in fruit Inner phyllaries yellowish-green with yellowish-white scarious margins, 8–11, linear-oblong, 3.5–7 mm long
Ray
Ray florets yellow, 2–5, neuter or with staminodes, with 5–7 orange striations, 3–6 x 1.3–2 mm, 2–3-cleft at the apex
Morphology Reproductive morphology Flowers Disc
Disk florets with corolla 3–3.7 mm long
Morphology Reproductive morphology Fruits
Achenes black, 6–16(–20) x 0.8–1.1 mm, linear-tetragonal, each face 2-striate-sulcate
Morphology Reproductive morphology Seeds Pappus
Pappus aristae 2–4(–5), 1–4 mm long, backwardly barbed.
Distribution
N1, 2; S1, 3 widespread in the Old World, in Africa from southern Egypt in the north to South Africa in the south.
Ecology
Altitude range 100–1500 m.

Native to:

Afghanistan, Angola, Assam, Benin, Botswana, Burkina, Cambodia, Cameroon, Cape Provinces, Central African Repu, Chad, China North-Central, China South-Central, China Southeast, Djibouti, Eritrea, Ethiopia, Free State, Ghana, Hainan, India, Ivory Coast, Japan, Jawa, Kenya, Korea, KwaZulu-Natal, Laccadive Is., Lesotho, Manchuria, Mozambique, Myanmar, Namibia, Nansei-shoto, Nepal, New Guinea, Northern Provinces, Northern Territory, Oman, Pakistan, Philippines, Queensland, Saudi Arabia, Socotra, Sri Lanka, Sudan, Taiwan, Tanzania, Thailand, Tonga, Uganda, Vietnam, West Himalaya, Western Australia, Yemen, Zambia, Zimbabwe

Introduced into:

Cape Verde, Fiji, France, Great Britain, Madeira, Réunion

English
Black jack

Bidens biternata (Lour.) Merr. & Sherff appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Nov 7, 2008 Crawford, F. [203], Namibia K000450308
Schimper, W. [2181], Ethiopia K000410581 isolectotype
Schimper [337], Ethiopia K000410582 isolectotype
Schimper [337], Ethiopia K000410583 isolectotype
Schimper [1427], Ethiopia K000410585
Schimper [337], Ethiopia K000410584 isolectotype

First published in Bot. Gaz. 88: 293 (1929)

Accepted by

  • Balkrishna, A. (2018). Flora of Morni Hills (Research & Possibilities): 1-581. Divya Yoga Mandir Trust.
  • Barooah, C. & Ahmed, I. (2014). Plant diversity of Assam. A checklist of Angiosperms and Gymnosperms: 1-599. Assam science technology and environment council, India.
  • Chou, S., Chhnang, P. & Kim, Y. (2016). A Checklist for the Seed Plants of Cambodia: 1-272. National Institute of Biological Resources, Korea.
  • Koyama, H., Bunwong, S., Pornpongrungrueng, P. & Hind, D.J.N. (2016). Flora of Thailand 13(2): 143-428. The Forest Herbarium, Royal Forest Department.
  • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

Literature

Flora of West Tropical Africa

  • B. bipinnata of Chev. Bot. 373, partly (Chev. 21959), not of Linn.
  • Coreopsis biternata Lour. (1780)
  • Sherff in Publ. Field Mus. 16: 388, t. 99.
  • in Bot. Gaz. 88: 293 (1929)

Kew Backbone Distributions

  • Balkrishna, A. (2018). Flora of Morni Hills (Research & Possibilities): 1-581. Divya Yoga Mandir Trust.
  • Barooah, C. & Ahmed, I. (2014). Plant diversity of Assam. A checklist of Angiosperms and Gymnosperms: 1-599. Assam science technology and environment council, India.
  • Chou, S., Chhnang, P. & Kim, Y. (2016). A Checklist for the Seed Plants of Cambodia: 1-272. National Institute of Biological Resources, Korea.
  • Ghazanfar, S.A. (1992). An Annotated Catalogue of the Vascular Plants of Oman and their Vernacular names Scripta Botanica Belgica 2: 1-153.

Flora of Somalia

  • Flora Somalia, (2000) Author: by Mesfin Tadesse [updated by M. Thulin 2008]
  • Mesfin Tadesse in Kew Bull. 48: 437–516 (1993).
  • Mesfin Tadesse in Symb. Bot. Upsal. 24: 1–138 (1984)

Flora of Tropical East Africa

  • A.D.Q. Agnew, Upland Kenya Wild Flowers p. 466 (1974).
  • Agnew, A.D.Q. & Agnew, S., Upland Kenya Wild Flowers, ed. 2: 217, t. 89 (1994).
  • C.D. Adams in Flora of West Tropical Africa ed. 2, 2: 234 (1963).
  • Cufod., Enumeratio Plantarum Aethiopiae Spermatophyta (Supplement in Bull. Jard. Bot. Nat. Belg.) p. 1135 (1967).
  • D.J.N. Hind in Fl. Masc. 109: 195, t. 66 (1993).
  • F. W. Andr., The Flowering Plants of the Sudan 3: 12 (1956).
  • Lisowski, Asterac. Fl. Afr. Centr. 1: 135 (1991).
  • Maquet in Fl. Rwanda 3: 633 (1985).
  • Merr. & Sherff in Bot. Gaz. 88: 293 (1929).
  • Mesfin in Kew Bulletin 48: 498 (1993).
  • Mesfin in Symb. Bot. Upsal. 24: 115, fig. 58 (1984).
  • Sherff in Field Mus. Nat. Hist., Bot. Ser. 16: 388, fig. 99/a, c–m (1937).
  • Wild in Kirkia 6: 26 (1967).

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of West Tropical Africa
Flora of West Tropical Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Science Photographs
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Plants and People Africa
Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
© Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/