1. Family: Convolvulaceae Juss.
    1. Cressa L.

      1. This genus is accepted, and its native range is Temp. & Subtropical.

    [FZ]

    Convolvulaceae, Maria Leonor Gonçalves. Flora Zambesiaca 8:1. 1987

    Habit
    A much-branched, small, short-lived, perennial, subshrub-like herb.
    Leaves
    Leaves small, entire, sessile.
    Flowers
    Flowers small, subsessile, aggregaged in bracteate clusters at the ends of the branchlets.
    Calyx
    Sepals 5, obovate, subequal, imbricate, coriaceous.
    Corolla
    Corolla 5-lobed; tube campanulate; lobes ovate, imbricate in bud, spreading.
    Stamens
    Stamens exserted; filaments filiform, glabrous, anthers oblong.
    Ovary
    Ovary 2-locular, 4-ovuled.
    Pistil
    Styles 2, exserted, distinct from the base; stigmas large, capitate.
    Fruits
    Capsule 2–4-valved, usually single-seeded.
    Seeds
    Seed glabrous and shining, dark brown.
    [FTEA]

    Convolvulaceae, B. Verdcourt (East African Herbarium). Flora of Tropical East Africa. 1963

    Habit
    A much-branched, short-lived, perennial, subshrubby herb
    Leaves
    Leaves small, sessile, entire
    Flowers
    Flowers small, subsessile in bracteate clusters at the tips of the branchlets
    Calyx
    Sepals obovate, subequal, imbricate
    Corolla
    Corolla-tube campanulate; lobes ovate, imbricate, spreading
    Stamens
    Stamens and styles exserted; filaments filiform
    Ovary
    Ovary 2-locular, 4-ovuled
    Pistil
    Styles 2, distinct to the base; stigmas large, capitate
    Fruits
    Capsule 2–4-valved, usually one-seeded
    Seeds
    Seed glabrous and shining, dark brown.

    Images

    Distribution

    Native to:

    Afghanistan, Albania, Algeria, Angola, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Baleares, Bangladesh, Bolivia, Bulgaria, California, Canary Is., Cape Verde, Chad, Chile Central, Chile North, Corse, Cyprus, Djibouti, East Aegean Is., Ecuador, Egypt, Eritrea, Ethiopia, France, Galápagos, Greece, Guinea, Guinea-Bissau, Gulf States, India, Iran, Iraq, Italy, Kenya, Kriti, Kuwait, Lebanon-Syria, Lesser Sunda Is., Libya, Madagascar, Mali, Mauritania, Mexican Pacific Is., Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Morocco, Mozambique, Nevada, New Mexico, New South Wales, Niger, North Caucasus, Northern Territory, Oklahoma, Oman, Oregon, Pakistan, Palestine, Paraguay, Peru, Portugal, Queensland, Sardegna, Saudi Arabia, Senegal, Sicilia, Sinai, Socotra, Somalia, South Australia, Spain, Sri Lanka, Sudan, Tadzhikistan, Tanzania, Texas, Transcaucasus, Tunisia, Turkey, Turkmenistan, Uruguay, Utah, Uzbekistan, Victoria, Western Australia, Yemen

    Introduced into:

    Hawaii

    Cressa L. appears in other Kew resources:

    First published in Sp. Pl.: 223 (1753)

    Accepted by

    • Johnson, R.W. (2012). Convolvulaceae Australian Plant Census Council of Heads of Australian Herbaria.
    • Dobignard, A. & C. Chatelain in Dobignard, A. & Chatelain, C. (2011). Convolvulaceae Index synonymique de la flore d'Afrique du nord 3: 331-351. Conservatoire et Jardin Botanique de la ville de Genève.
    • Hedberg, I., Kelbessa, E., Edwards, S., Demissew, S. & Persson, E. (eds.) (2006). Flora of Ethiopia and Eritrea 5: 1-690. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Thulin, M. et al. in Thulin, M. (ed.) (2006). Convolvulaceae Flora of Somalia 3: 221-258. The Royal Botanic Gardens, Kew.
    • Miller, A.G. & M. Morris in Miller, A.G. & M. Morris (2004). Ethnofl. Soqotra Archipel. Convolvulaceae + Cuscutaceae Ethnoflora of the Soqotra Archipelago: 516-524. Royal Botanic Garden Edinburgh.
    • Deroin, T. (2001). Convolvulaceae Flore de Madagascar et des Comores (Plantes Vasculaires) 171: 11-287. Typographie Firmin-Didot et Cie., Paris.
    • Austin, D. F. (2000). A revision of Cressa L. (Convolvulaceae) Botanical Journal of the Linnean Society 133: 27-39.
    • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
    • Dempster, L. T. in Hickman, J. C. (ed.) (1993). Convolvulaceae The Jepson Manual, higher plants of Cilfornia: 516-522. Univ. California Press.
    • Gonçalves, M.L. (1987). Convolvulaceae Flora Zambesiaca 8(1): 9-129. Royal Botanic Gardens, Kew.
    • Al-Rawi, A. in Al-Rawi, A. (1985). Fl. Kuwait Convolvulaceae Flora of Kuwait 1: 182-186. Alden Press Ltd., U.K.
    • Cronquist, A. et al. in Cronquist, A., et al. (1984). Convolvulaceae Intermountain Flora, vascular plants of the intermountain west, U.S.A. 4: 74-84. New York Botanical garden.
    • Austin, D. F. (1982). Flora of Ecuador 15: 3-99. Botanical Institute, University of Göteborg, Riksmuseum, Stockholm.
    • Austin, D.F. in Dassanayake (ed.) (1980). Rev. Handb. Fl. Ceylon Convolvulaceae A Revised Handbook to the Flora of Ceylon 1: 288-363. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
    • Austin, D.F. & S. Ghazanfar in E. Nasir & Ali, S.I. (eds.) (1979). Convolvulaceae Flora of West Pakistan 126: 1-64.
    • Parris, B.S. & R. Brummitt in Davis, P.H. (ed.) (1978). Convolvulaceae Flora of Turkey and the East Aegean Islands 6: 197-222. Edinburgh University Press, Edinburgh.
    • Grigor'ev, Y.S. (1974). Convolvulaceae Flora of the USSR 19: 3-30. Science Publishers, Inc.
    • Ooststroom, S.J. van (1972). Malesian CNV Addenda, corrigenda & emendanda III Flora Malesiana 6: 936-941. Noordhoff-Kolff N.V., Djakarta.
    • Valentine, D.H. et al. in Tutin, T.G. & al. (eds.) (1972). Convolvulaceae Flora Europaea 3: 74-83. Cambridge University Press.
    • Verdcourt, B. (1963). Convolvulaceae Flora of Tropical East Africa: 1-161.
    • Heine, H. in Hutchinson, J. & Dalziel, J.M. (1963). Convolvulaceae Flora of West Tropical Africa, second edition 2: 335-352 + 496. Crown Agents for Oversea Governments and Administrations.
    • O'Donell, C.A. (1959). Convolvuloideas de Uruguay Lilloa 29: 349-376. Universidad Nacional de Tucuman, Instituto 'Miguel Lillo'.
    • Andrews, F.W. in Andrews, F.W. (1956). Convolvulaceae The Flowering Plants of the Sudan 3: 102-125. T.Buncle & co., LTD., Arbroath, Scotland.
    • Baker, J.G. & A.B. Rendle in Thiselton-Dyer, W.T. et al. (eds.) (1905). Convolvulaceae Flora of Tropical Africa 4(2): 62-206. Secretary of State for the Colonies.
    • Clarke, C.B. in Hooker, J.D. (1883). Fl. Br. India Convolvulaceae Flora of British India 4: 179-228 + 734.
    • Meisner, C.F. in Martius, C.F.P.von & auct. suc. (eds.) (1869). Convolvulaceae Flora Brasiliensis 7: 199-370.

    Literature

    Flora of West Tropical Africa
    • —F.T.A. 4, 2: 72.
    Flora Zambesiaca
    • Gen. Pl., ed. 5: 104 (1754).
    • Sp. Pl.: 223 (1753)
    Flora of Tropical East Africa
    • L., Gen. Pl., ed. 5 : 104 (1754)
    • Sp. Pl. : 223 (1753)

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. 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 2018. 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