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This genus is accepted, and is native to Asia-Tropical, Africa, Southern America, Northern America and Australasia..

[FZ]

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

Habit
Annual, glandular-pubescent, often aromatic herbs, much-branched, or subshrubs.
Leaves
Leaves opposite or verticillate, occasionally alternate below, simple, subentire to variously toothed.
Flowers
Flowers zygomorphic in lax terminal racemes or solitary-axillary, pedicellate.
Inflorescences
Pedicels uni- or bibracteolate.
Calyx
Calyx 5-lobed; lobes narrow, equal or subequal.
Corolla
Corolla tubular; tube cylindric; upper lip broad, emarginate to entire; lower lip trilobed.
Stamens
Stamens 4, didynamous, included; filaments slender; anther thecae stipitate, all fertile.
Style
Style usually bilobed.
Fruits
Capsule globose, ovoid, sometimes acuminate, valves 2, bifid or 4; usually loculicidally dehiscent Seeds numerous, small, striate.

[FTEA]

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

Habit
Herbs or undershrubs, glandular-pubescent, often aromatic
Leaves
Leaves opposite or whorled
Flowers
Flowers solitary in the axils of leaves or in a crowded leafy spike
Calyx
Calyx deeply 5-lobed, lobes narrow, imbricate, equal or subequal
Corolla
Corolla white or blue, 2lipped, tube cylindrical
Stamens
Stamens 4, didynamous, included, filaments filiform, antherthecae stipitate, all fertile
Ovary
Ovary with the style dilated at the apex, usually 2-lobed
Fruits
Capsule narrow ovoid or globose, dehiscence loculicidal or sometimes septicidal, valves 2 or 4
Seeds
Seeds numerous, minute.

Native to:

Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Aruba, Bahamas, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Burkina, Burundi, California, Cameroon, Cayman Is., Chad, Chile Central, Chile North, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Ethiopia, French Guiana, Ghana, Guatemala, Guyana, Haiti, Honduras, India, Jamaica, Kenya, Leeward Is., Madagascar, Mali, Mauritania, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Mozambique, Netherlands Antilles, Nicaragua, Nigeria, Northern Territory, Panamá, Paraguay, Peru, Puerto Rico, Senegal, Sri Lanka, Sudan, Suriname, Tanzania, Texas, Trinidad-Tobago, Uruguay, Venezuela, Venezuelan Antilles, Western Australia, Windward Is., Zambia

Introduced into:

Florida, Galápagos, Guinea, Gulf of Guinea Is., Jawa, Laos, Liberia, Malaya, Mauritius, Réunion, Seychelles, Sierra Leone, Taiwan, Vietnam

Stemodia L. appears in other Kew resources:

First published in Syst. Nat. ed. 10, 2: 1118 (1759)

Literature

Flora of West Tropical Africa

  • —F.T.A. 4, 2: 313. Nom. cons.

Flora Zambesiaca

  • Syst. Nat., ed. 10: 1118 (1759).

Flora of Tropical East Africa

  • Syst. Nat. ed. 10: 1091, 118, 1374 (1759), nom. conserv.

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 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/