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This genus is accepted, and its native range is Tropics & Subtropics.
Becium sp.

[LKGF]

Harley, R.M. et al. (2004). Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Springer-Verlag, Berlin, Heidelberg, New York.

Morphology General Habit
Shrubs or herbs, often geoxylic, usually aromatic
Morphology Leaves
Leaves simple
Morphology Reproductive morphology Inflorescences
Inflorescence thyrsoid with cymes sessile, usually 3-flowered
Morphology Reproductive morphology Inflorescences Bracts
Bracts very rarely coloured, persistent or if caducous bract-scar developing into auxiliary nectary
Morphology Reproductive morphology Flowers Calyx
Calyx infundibular to tubular, straight, curving upwards or rarely bent downwards, strongly 2-lipped, 5-lobed (1/4), lobes unequal, posterior rounded, decurrent, curving upwards, lateral teeth deltoid, sometimes with a prominent shoulder or truncate, ante
Morphology Reproductive morphology Flowers Corolla
Corolla strongly 2-lipped, 5-lobed (4/1), white or pink, posterior lip ascending, equally 4-lobed or with median exceeding lateral lobes, entire or fimbriate, anterior lip ± horizontal, flat or slightly concave, corolla-tube straight or curved towards bas
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, posterior pair attached near corolla base, rarely sterile, exserted, filaments usually pubescent at base, often appendiculate, anterior pair attached at corolla throat
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma-lobes equal, subulate
Morphology Reproductive morphology Flowers Disc
Disc equally 4-lobed
Morphology Reproductive morphology Fruits
Nutlets spherical to ellipsoid, rarely apically pubescent usually mucilaginous.
Note
2n = 24-76, 88.  Sixty-five species. Subgenus Nautochilus (Bremek.) Paton might require recognition at generic rank.
Distribution
Pantropical, mostly in Africa. Introduced to Eastern Europe and Central Pacific
Ecology
In drier areas, grassland and open woodland.

[FSOM]

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

Morphology General Habit
Herbs, subshrubs or small shrubs
Morphology Reproductive morphology Inflorescences
Inflorescences thyrse-like, lax or dense; bracts smaller and distinct from the leaves, persistent or deciduous, sometimes forming a coma at apex of the inflorescences; cymes 3-flowered (in Somali species), pedunculate absent or almost so; bracteoles absent
Morphology Reproductive morphology Flowers Calyx
Calyx 5-lobed or apparently 3-lobed, open or closed in fruit; upper lobe much larger than other lobes, decurrent along the tube; lateral lobes broad at the base, apically subulate, toothed or truncate to arcuate; lower lobes free or connate to an emarginate lower lip
Morphology Reproductive morphology Flowers Corolla
Corolla strongly 2-lipped; upper lip ± equally 4-lobed, almost flat; lower lip straight or deflexed, ± as long as or shorter than the upper lip, shallowly concave or almost flat
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens directed to the lower lip of the corolla, longer than the lower lip; posterior pair inserted in the proximal part of the corolla-tube, hairy, with knee-bend and/or appendage in basal part of filaments, or rarely straight and without appendage (O. spectabile)
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers with divergent or parallel thecae
Morphology Reproductive morphology Flowers Gynoecium Style
Style-branches equally long
Morphology Reproductive morphology Fruits
Nutlets obovoid, ellipsoid or subglobose, glabrous or hairy.
Distribution
Genus with about 67 species, widely distributed in the warm regions of the world.

[KBu]

Suddee, S., A. J. Paton, & Parnell, J. (2005). Taxonomic Revision of Tribe Ocimeae Dumort. (Lamiaceae) in Continental South East Asia III. Ociminae. Kew Bulletin, 60(1), 3-75. Retrieved from http://www.jstor.org/stable/4110885

Morphology General Habit
Erect annual or perennial herbs or undershrubs, usually aromatic. Stems quadrangular or round- quadrandgular, often woody at base and much branched
Morphology Leaves
Leaves petiolate, opposite, membranous to chartaceous, margin entire to serrate
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, didynamous, declinate, exserted, subequal or with the anterior ones slightly longer; posterior attached near the base of corolla tube, appendiculate with a glabrous or hairy transverse process or with a tuft of hairs near base; anterior usually attached near the corolla throat, glabrous and inappendiculate; filaments free; anthers synthecous, often confluent
Morphology Reproductive morphology Flowers Calyx
Calyx ovoid or campanulate in flower and fruit, bilabiate, reflexed against the inflorescence axis in fruit; posterior lip broad, 1-lobed, orbicular or obovate, strongly reflexed and decurrent on tube in fruit; anterior lip 4-lobed, unequal, usually curved upwards and sometimes closing throat, equal or longer than posterior, teeth of lateral lobes deltoid or lanceolate, sometimes fringed, sinuate or with a row of many minute teeth, teeth of median lobes lanceolate or aristate; tube rarely constricted at throat, with 10 longitudinal veins; throat glabrous or with a ring of hairs
Morphology Reproductive morphology Flowers Corolla
Corolla subequal to or exserted from calyx tube; posterior lip erect, subequally 4-lobed; anterior lip longer, horizontal, flat or concave, entire; tube straight, dorsally gibbous at midpoint, dilated towards throat
Morphology Reproductive morphology Flowers Disc
Disc more or less equally 4- lobed
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary glabrous
Morphology Reproductive morphology Flowers Gynoecium Style
Style declinate, bifid with branches usually subequal, subulate and flattened
Morphology Reproductive morphology Fruits
Nutlets obovoid, oblong, ellipsoid or subglobose, smooth or finely warty, sometimes producing mucilage when wet.
Morphology Reproductive morphology Inflorescences
Inflorescence terminal, simple or branched at base; verticils clearly interrupted; cymes sessile, unbranched, 3-flowered; bracts small or large, clawed or subsessile, sometimes forming an apical coma, caducous, sometimes leaving a prominent circular persistent gland at base
Morphology Stem
Stems quadrangular or round- quadrandgular, often woody at base and much branched
Note
For further African generic and specific synonyms see Paton (1992, Paton et al. 1999). These works do not deal with Asiatic synonyms in great detail.
Type
Type species: Becium bicolor Lindl. (= Ocimum grandiflorum Lam.). Lectotype species: Ocimum basilicum L. Becium Lindl.

[FTEA]

Lamiaceae (Labiatae), A.J. Paton, G. Bramley, O. Ryding, R.M. Polhill, Y.B. Harvey, M. Iwarsson, F. Willis, P.B. Phillipson, K. Balkwill, C.W. Lukhoba, D.F. Otieno, & R.M. Harley. Flora of Tropical East Africa. 2009

Morphology General Habit
Annual or perennial, herbs or shrubs, usually aromatic; indumentum of simple or dendroid hairs
Morphology Stem
Stems erect, usually branching above, often woody at base
Morphology Leaves
Leaves opposite or occasionally ternate, petiolate or rarely subsessile
Morphology Reproductive morphology Flowers
Flowers hermaphrodite, arranged in generally 6-flowered verticils, in a lax or dense inflorescence; bracts small or occasionally large and brightly coloured, sometimes forming a terminal coma, persistent or, if caducous, bract-scar often developing into an auxiliary nectary
Morphology Reproductive morphology Flowers Calyx
Calyx funnel-shaped to tubular, straight, curving upwards or rarely bent downwards, 2-lipped; posterior lip large, entire, rounded at tip, decurrent on tube, curving upwards; anterior lip 4-lobed, teeth of lateral lobes lanceolate or deltate, teeth of median lobes deltate to subulate at anthesis; in fruit posterior lip accrescent, curving up or rarely flat; anterior lip sometimes closing the calyx-throat; throat sometimes densely hairy
Morphology Reproductive morphology Flowers Corolla
Corolla whitish or pinkish, strongly 2-lipped; tube straight or curved towards base, usually dorsally gibbous at midpoint, often dilating towards throat; posterior lip subequally 4-lobed or with median exceeding lateral lobes, entire or fimbriate; anterior lip ± horizontal, flat or slightly concave
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, declinate, equal or unequal, exserted; posterior pair attached near base of corolla, rarely sterile, exserted, filaments usually pubescent at base, often appendiculate; anterior pair attached near corolla throat, glabrous; anthers dorsifixed, synthecous
Morphology Reproductive morphology Flowers Disc
Disk equally 4-lobed
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary glabrous or with minute hairs, deeply 4-lobed; style gynobasic, bifid, branches equal, subulate
Morphology Reproductive morphology Fruits
Nutlets black or brown, ovoid or spherical, with a small basal scar or not, smooth or minutely hairy, sometimes producing mucilage on wetting or not; embryo straight, exalbuminous.
Note
The most commonly cultivated in the Flora area are O. basilicum, O. africanum, O. gratissimum and O. kilimandscharicum. The genus has recently been broadened to include Becium, Erythrochlamys and Nautochilus. An infrageneric arrangement is elaborated by A. Paton, R.M. Harley & M.M. Harley in Y. Holm & R. Hiltunen (eds), Ocimum: Medicinal and Aromatic Plants – industrial profiles: 1–38 (1999), in Series Ed. Hardman, Harwood Academic, Amsterdam. The East African species belong to the following sections and subgenera – for more details of subsections and series see Paton et al., loc. cit. (1999).

[LKGF]
Use
Several species, especially O. basilicum L. and O. tenuiflorum L., cultivated as potherbs, for medicinal use and ritual.  Some species are used as indicators of heavy metals.

Native to:

Aldabra, Andaman Is., Angola, Argentina Northeast, Argentina Northwest, Assam, Bahamas, Bangladesh, Belize, Benin, Bismarck Archipelago, Bolivia, Borneo, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Burkina, Burundi, Cambodia, Cameroon, Cape Provinces, Cape Verde, Caprivi Strip, Cayman Is., Central African Repu, Chad, Chile North, China South-Central, China Southeast, Colombia, Comoros, Congo, Costa Rica, Cuba, Djibouti, Dominican Republic, East Himalaya, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Ethiopia, Florida, Free State, French Guiana, Gabon, Gambia, Ghana, Guatemala, Guinea, Guinea-Bissau, Gulf of Guinea Is., Gulf States, Guyana, Hainan, Haiti, Honduras, India, Ivory Coast, Jamaica, Jawa, Kenya, KwaZulu-Natal, Laccadive Is., Laos, Leeward Is., Lesotho, Lesser Sunda Is., Liberia, Madagascar, Malawi, Malaya, Maldives, Mali, Maluku, Marianas, Mauritania, Mauritius, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Mozambique, Myanmar, Namibia, Nepal, New Guinea, Nicaragua, Nicobar Is., Niger, Nigeria, Northern Provinces, Northern Territory, Oman, Pakistan, Panamá, Paraguay, Peru, Philippines, Puerto Rico, Queensland, Rwanda, Saudi Arabia, Senegal, Sierra Leone, Socotra, Solomon Is., Somalia, South China Sea, Southwest Caribbean, Sri Lanka, Sudan, Sulawesi, Sumatera, Suriname, Swaziland, Taiwan, Tanzania, Thailand, Togo, Trinidad-Tobago, Uganda, Uruguay, Vanuatu, Venezuela, Venezuelan Antilles, Vietnam, West Himalaya, Western Australia, Windward Is., Yemen, Zambia, Zaïre, Zimbabwe

Introduced into:

Aruba, Canary Is., Christmas I., Cook Is., East Aegean Is., Fiji, Gilbert Is., Hawaii, Illinois, Kazakhstan, Line Is., Mongolia, Netherlands Antilles, New Caledonia, New York, Niue, Primorye, Samoa, Society Is., South Australia, South European Russi, Tokelau-Manihiki, Tonga, Ukraine, Wallis-Futuna Is., Xinjiang

Ocimum L. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Branderhorst, B. [240], Indonesia K000897208
Mann, E.B. [NGF43339], Papua New Guinea K000897209
Craven, L.A. [1412], Papua New Guinea K000897210
Troupin, G. [4805], Rwanda Becium 1232.000
Ash [985], Ethiopia Becium 37006.000
Ash [772], Ethiopia Becium 37007.000

First published in Sp. Pl.: 597 (1753)

Accepted by

  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Paton, A.J., Bramley, G., Ryding, O., Polhill, R., Harvey, Y., Iwarsson, M., Willis, F., Phillipson, P., Balkwill, K., Lukhoba, C., Otiend, D & Harley (2009). Lamiaceae (Labiatae) Flora of Tropical East Africa: 1-430.

Literature

Flora of West Tropical Africa

  • —F.T.A. 5: 334.

Flora of Somalia

  • Flora Somalia, (2000) Author: by O. Ryding [updated by M. Thulin 2008]
  • Paton & al. in Holm & Hiltunen, Medicinal and aromatic plants - industrial profiles: 1–38 (1999).
  • Paton in Kew Bull. 47: 403–435 (1992)
  • Paton in Kew Bull. 50: 199–242 (1995)
  • Sebald in Stuttgarter Beitr. Naturk. Ser. A 419: 1–74 (1988)
  • Sebald in Stuttgarter Beitr. Naturk. Ser. A 437: 1–63 (1989)

Flora of Tropical East Africa

  • Gen. Pl., ed. 5: 259 (1754)
  • Holm & Hiltunen, Ocimum: 1–38 (1999)
  • K.B. 49: 403–435 (1992)
  • K.B. 60: 24–31(2005)
  • Kubitzki, Fam. Gen. Vasc. Pl. 7: 260 (2004)
  • L., Sp. Pl.: 597 (1753)
  • Sp. Pl.: 597 (1753)

Lamiaceae Key Genus Fact Sheets

  • Becium Lindl., Edwards's Bot. Reg. 28: t. 42 (1842).
  • Erythrochlamys Gürke, Bot. Jahrb. Syst. 19: 222 (1894).
  • Gen. Pl. ed. 5: 259 (1754)
  • Harley RM, Atkins S, Budantsev AL, Cantino PD, Conn BJ, Grayer R, Harley MM, de Kok RPJ, Krestovskaja T, Morales R, Paton AJ, Ryding O, and Upson T. 2004. Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Sp
  • Hyperaspis Briq., Bull. Herb. Boissier, II, 3: 975 (1903).
  • Nautochilus Bremek., Ann. Transvaal Mus. 15: 252 (1933).
  • Ocimum L., Sp. Pl. 2: 597 (1753)
  • Orthosiphon sect. Serrati Ashby (1938).
  • Orthosiphon subgenus Nautochilus (Brem.) L.E.Codd (1964).
  • Paton, Harley & Harley in Holm & Hiltunen (eds.). Ocimum. Medicinal and Aromatic plants - industrial profiles: 1-38 (1999), Harwood Academic, Amsterdam, rev.

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

Herbarium Catalogue Specimens

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 Bulletin
Kew Bulletin
http://creativecommons.org/licenses/by-nc-sa/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

Lamiaceae Key Genus Fact Sheets
Nina Davies, Gemma Bramley and Don Kirkup, Royal Botanic Gardens, 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/