1. Family: Rubiaceae Juss.
    1. Tarenna Gaertn.

      1. This genus is accepted, and its native range is Tropical & Subtropical Old World to Pacific.


    Rubiaceae, B. Verdcourt. Flora of Tropical East Africa. 1976

    Small trees, shrubs or sometimes lianes
    Leaves opposite, petiolate or occasionally subsessile, chartaceous to coriaceous, usually ± acuminate; domatia sometimes present; stipules interpetiolar, ± truncate, triangular-lanceolate or ovate (not in Flora area), always erect, often blackened at central area when dry, sometimes aristate
    Flowers fragrant, hermaphrodite, (4–)5-merous, usually rather small, pedicellate or less often sessile in mostly corymbose terminal or infrequently axillary inflorescences; bracts sometimes present but inconspicuous; bracteoles present, often on the pedicel
    Calyx pubescent, puberulous or glabrous; tube turbinate to ovoid; limb-tube usually short sometimes absent; lobes overlapping or not, mostly under 5 mm. long
    Corolla white to yellowish; tube cylindrical or sometimes tending to be funnel-shaped, slightly shorter or longer than the lobes or occasionally much longer, glabrous to bearded at throat; lobes ± oblong, contorted
    Stamens attached at the mouth of the tube, exserted and spreading or less often incompletely exserted; filaments short; anthers dorsiflxed near the base, linear or rarely narrowly oblong, often shortly apiculate
    Disc annular
    Ovary 2-locular; placentas attached near the top of the septum, either larger ± ovate with 1–15 ovules impressed on them or small to moderately large with 2–5(–8) ovules pendulous from them; style slender, pubescent or sometimes glabrous, with stigmatic club always exserted, bifid at apex only or rarely completely bifid
    Fruit usually pale green to green, white or black when mature, small, scarcely fleshy, globose, mostly crowned by the persistent calyx-limb, either 1-locular and 1-seeded or 2-locular with 1–several seeds in each locule
    Seeds either blackish, ± spherical with an irregular to ± regular hilar cavity, reticulate surface and a ruminate or less often entire endosperm, or brown, hemispherical to variously shaped with a ± round or occasionally elongate hilar cavity, surface smooth to the naked eye (actually minutely reticulate) and an entire endosperm.

    Rubiaceae, D.M.Bridson & B.Verdcourt. Flora Zambesiaca 5:3. 2003

    Corolla glabrous or sometimes sparsely pubescent outside; tube shorter than, equal to or much longer than lobes, sparsely to densely pubescent or rarely glabrous at throat.
    Placenta ± ovate, with 1–15 impressed ovules.
    Fruit very often turning whitish when mature, 2-locular.
    Seeds 2–several per fruit, brown, smooth, variously shaped, if 2, then hemispherical, with a distinct, usually circular hilar cavity; endosperm entire.
    Leaves chartaceous to subcoriaceous or less often coriaceous, mature or immature at time of flowering; blades glabrous or pubescent on both sides.
    Stipules frequently with limb dark (dark green when fresh, drying black), seldom coriaceous, often shortly sheathing, triangular and aristate or awned, or infrequently ovate and rounded.
    Inflorescences terminal on main and leafy lateral branches, sometimes with supplementary axillary inflorescences infrequently axillary (not in the Flora area), or less often, terminal on very short leafless branches, lax or compact; flowers pedicellate or sometimes shortly so, sometimes pedicels accrescent in fruit.
    Calyx limb with both limb-tube and lobes present (TAB. 73/1A), lobes often overlapping, sometimes drying fawn to brown.

    Leguminosae, B. Mackinder, R. Pasquet, R. Polhill & B. Verdcourt. Flora Zambesiaca 3:5. 2001

    Herbs or subshrubs.
    Leaves digitately 3-foliolate, rarely 1-foliolate; leaflets covered with small glands, particularly beneath; stipules deciduous; stipels absent.
    Inflorescences axillary or terminal, racemose or paniculate, usually dense but sometimes 1–few-flowered.
    Calyx 5-lobed; lobes longer than the tube, usually glandular.
    Corolla small, greenish or yellowish; standard oblong or elliptic, auriculate; wings very narrow.
    Vexillary stamen free; anthers uniform.
    Ovary ellipsoid, 2-ovuled; style filiform, enlarged above; stigma very small.
    Pods oblong-ovoid, inflated, the style oblique and persistent.
    Seeds 2, globose; hilum oval.



    Native to:

    Aldabra, Andaman Is., Angola, Assam, Bangladesh, Benin, Borneo, Botswana, Burkina, Burundi, Cabinda, Cambodia, Cameroon, Cape Provinces, Caprivi Strip, Caroline Is., Central African Repu, China South-Central, China Southeast, Comoros, Congo, East Himalaya, Equatorial Guinea, Fiji, Gabon, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Hainan, India, Ivory Coast, Japan, Jawa, Kenya, KwaZulu-Natal, Laos, Lesser Sunda Is., Liberia, Madagascar, Malawi, Malaya, Mali, Maluku, Marianas, Mozambique, Myanmar, Namibia, Nansei-shoto, New Caledonia, New Guinea, Nicobar Is., Nigeria, Niue, Northern Territory, Ogasawara-shoto, Philippines, Queensland, Rwanda, Samoa, Santa Cruz Is., Senegal, Seychelles, Sierra Leone, Society Is., Solomon Is., Sri Lanka, Sudan, Sulawesi, Sumatera, Swaziland, Taiwan, Tanzania, Thailand, Tonga, Tuamotu, Tubuai Is., Uganda, Vanuatu, Vietnam, Wallis-Futuna Is., Western Australia, Zambia, Zaïre, Zimbabwe

    Introduced into:

    Algeria, Italy, Réunion

    Tarenna Gaertn. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Sep 1, 2009 Mackinder, B. [367], Cameroon K000518770
    Jan 1, 1998 Mbani, J. M. [315], Cameroon K000011823
    Drummond, R.B. [3876], Kenya 3344.000
    Keay, R.W.J. [FHI.22447], Nigeria 35246.000
    Baldwin, J.T. [9509], Liberia K000040168
    Davis, A.P. [2213], Madagascar 61289.000
    Davis, A.P. [2217], Madagascar 61290.000
    Davis, A.P. [2168], Madagascar 61297.000
    Davis, A.P. [2170], Madagascar 61298.000
    Davis, A.P. [2193], Madagascar 61301.000
    Davis, A.P. [2140], Madagascar 63717.000
    Davis, A.P. [2142], Madagascar 63719.000
    Davis, A.P. [2224], Madagascar 63723.000
    Davis, A.P. [2255], Madagascar 63904.000
    Davis, A.P. [2533], Madagascar 64146.000
    Davis, A.P. [1172], Madagascar 62448.000
    Davis, A.P. [2304], Madagascar 70121.000
    Davis, A.P. [2304], Madagascar 70144.000
    Davis, A.P. [3040], Cameroon 70360.000
    Davis, A.P. [3080], Madagascar 76214.000
    Merello, M. [1150], Ghana K000040174
    Merello, M. [1399], Ghana K000040171
    Merello, M. [1180], Ghana K000040175
    Harder, D.K. [3413], Ghana K000040173
    Schmidt, H.H. [2052], Ghana K000040172
    Maurin, O. [104], Madagascar 76238.000
    Johnstone, H.H. [s.n.], Liberia K000040170
    Yallah [133], Liberia K000040169

    First published in Fruct. Sem. Pl. 1: 139 (1788)

    Accepted by

    • Kesonbua, W. & Chantaranothai, P. (2008). A checklist of the genus Tarenna (Rubiaceae) in Thailand Thai Forest Bulletin (Botany) 36: 18-45.
    • Degreef, J. (2006). Revision of continental African Tarenna (Rubiaceae-Pevetteae) Opera Botanica Belgica 14: 1-150.
    • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.


    Flora of West Tropical Africa
    • —F.T.A. 3: 88.
    Flora Zambesiaca
    • Fruct. Sem. Pl. 1: 139, t. 28 (1788).
    Flora of Tropical East Africa
    • Bridson in K.B. 34: 377 (1979)
    • Fruct & Sem. 1: 139, t. 28 (1788)


    Flora Zambesiaca
    Flora Zambesiaca

    Flora of Tropical East Africa
    Flora of Tropical East Africa

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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