1. Family: Orobanchaceae Vent.
    1. Buchnera L.

      1. This genus is accepted, and its native range is N. & Tropical America, Tropical & S. Africa, Madagascar, Arabian Peninsula Tropical Asia, Australia.

    [FTEA]

    Scrophulariaceae, S.A. Ghazanfar, F.N. Hepper & D. Philcox. Flora of Tropical East Africa. 2008

    Habit
    Annual or perennial, often hemi-parasitic, herbs, usually scabrid and rigid, usually becoming black upon drying.
    Stem
    Stems simple or branched from the base or below the inflorescence, glabrous to hispid-scabrid often with callus-based hairs
    Leaves
    Leaves alternate, subopposite to opposite on stem, rosulate below, sessile to shortly petiolate; lower leaves usually broader with upper narrower and passing into bracts
    Inflorescences
    Inflorescence terminal, spicate or with flowers in terminal or axillary globose or subglobose clusters, or flowers solitary-axillary; flowers subtended by one bract and usually two bracteoles
    Calyx
    Calyx tubular, 10- (rarely 7- or 8-) veined or ribbed, sometimes obscurely so, 4–5-dentate
    Corolla
    Corolla tubular, cylindric, slightly curved to arcuate; limb subequally 5-lobed, spreading
    Stamens
    Stamens 4, included, slightly didynamous; anthers monothecal, dorsifixed
    Gynoecium
    Stigma narrowly cylindric; style apex clavate, entire
    Fruits
    Capsule loculicidal
    Seeds
    Seeds numerous.
    [FZ]

    Scrophulariaceae, D. Philcox. Flora Zambesiaca 8:2. 1990

    Habit
    Annual or perennial, of ten hemi-parasitic, herbs, usually scabrid and rigid, usually becoming black upon drying; stems erect, ascending or prostrate, simple or branched from the base or below the inflorescence, glabrous to hispid-scabrid of ten with callus-based hairs.
    Leaves
    Leaves alternate, subopposite to opposite on stem, rosulate below, simple, sessile to shortly petiolate, filiform to lanceolate, elliptic or ovate-spathulate, apex acute or obtuse, entire to irregularly and coarsely dentate, 1–5-nerved; lower usually broader with upper narrower and passing into bracts.
    Inflorescences
    Inflorescence terminal, spicate or with flowers in terminal or axillary globose or subglobose clusters, or flowers solitary-axillary; spikes compact to lax; flowers subtended by one bract and usually two bracteoles, blue to violet or purple, rose to scarlet, yellow to white.
    Calyx
    Calyx tubular, 10 (rarely 7 or 8)-nerved or ribbed, sometimes obscurely so, 4–5-dentate, glabrous, pilose, hispid-scabrid or glandular; teeth short-deltoid to lanceolate-acuminate, erect, spreading or reflexed.
    Corolla
    Corolla tubular; tube cylindric, slightly longer to 2–3 rimes longer than calyx, straight, slightly curved to arcuate, externally glabrous to variously sof tly pilose-pubescent; limb subequally 5-lobed, spreading; lobes obovate to subcircular to oblong, entire or emarginate; throat densely pilose or not.
    Stamens
    Stamens 4, included, slightly didynamous; anthers monothecous, dorsifixed.
    Stigma
    Stigma narrowly cylindric.
    Style
    Style apex clavate, entire.
    Ovules
    Ovules numerous in each locule.
    Fruits
    Capsule ovoid, oblate to cylindric, shorter or longer than calyx, loculicidal.
    Seeds
    Seeds numerous.

    Images

    Distribution

    Native to:

    Alabama, Angola, Argentina Northeast, Argentina Northwest, Arizona, Assam, Bahamas, Belize, Benin, Bolivia, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Burkina, Burundi, Cambodia, Cameroon, Cape Provinces, Central African Repu, Chad, China South-Central, Colombia, Congo, Costa Rica, Cuba, Delaware, District of Columbia, Dominican Republic, East Himalaya, Ecuador, El Salvador, Ethiopia, Florida, Free State, French Guiana, Gabon, Gambia, Georgia, Ghana, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Illinois, India, Indiana, Ivory Coast, Jamaica, Jawa, Kansas, Kentucky, Kenya, KwaZulu-Natal, Laos, Lesotho, Lesser Sunda Is., Madagascar, Malawi, Mali, Maryland, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Mississippi, Missouri, Mozambique, Myanmar, Namibia, Nepal, New Guinea, New Jersey, New South Wales, New York, Nicaragua, Niger, Nigeria, North Carolina, Northern Provinces, Northern Territory, Oklahoma, Oman, Ontario, Panamá, Paraguay, Pennsylvania, Peru, Puerto Rico, Queensland, Rwanda, Senegal, Sierra Leone, South Carolina, Sudan, Sumatera, Suriname, Swaziland, Tanzania, Tennessee, Texas, Thailand, Trinidad-Tobago, Uganda, Uruguay, Venezuela, Vietnam, Virginia, West Himalaya, Western Australia, Windward Is., Yemen, Zambia, Zaïre, Zimbabwe

    Introduced into:

    Chagos Archipelago

    Buchnera L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Wild, H. [1337], Zimbabwe 16347.000
    Rehmann, A. [6558], Gauteng K000959860 syntype
    Rehmann, A. [5430], South Africa K000959861 syntype
    McLea, J.H. [5746], South Africa K000959862
    Kirk, J.W.C. [40], Gauteng K000959859 syntype

    First published in Sp. Pl.: 630 (1753)

    Accepted by

    • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

    Literature

    Flora of West Tropical Africa
    • —F.T.A. 4, 2
    Flora Zambesiaca
    • Gen. Pl., ed. 5: 278 (1754).
    • Sp. Pl.: 630 (1753)
    Flora of Tropical East Africa
    • Gen. Pl., ed. 5: 278 (1754)
    • Sp. Pl. 2: 630 (1753)

    Sources

    Art and Illustrations in Digifolia
    Digital Image © Board of Trustees, RBG Kew

    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

    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.
    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 2019. 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 2019. 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

    Neotropikey
    Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics.
    http://creativecommons.org/licenses/by/3.0