Spermatophyta: Dicotyledonae: Metachlamydeae: Asterales

Asteraceae - Sunflower family

Compositae

Beentje, H.J. & Ghazanfar, S.A. (eds.) (2005) Compositae (Part 3) Flora of Tropical East Africa

Beentje, H.J. (ed.) (2000) Compositae (Part 1) Flora of Tropical East Africa

Beentje, H.J. (ed.) (2002) Compositae (Part 2) Flora of Tropical East Africa

Pope, G.V. (1992) Compositae Flora Zambesiaca 6(1)

Description of the family

Herbs, suffrutices, shrubs or (rarely) climbers or trees. Leaves alternate, less often opposite. Stipules 0, but false stipules occur in a few species (for example: Vernonia myriantha and Senecio deltoideus) . Flowers small (florets), aggregated into heads (capitula) and simulating single larger flowers and surrounded by a calyx-like involucre of one or more series of bracts (phyllaries). Receptacle of the head expanded, with or without receptacular scales or bristles each subtending a floret. Florets all similar sexually (head homogamous) or central and marginal florets differing (head heterogamous) and then the central florets usually bisexual or rarely male, the outer female or rarely neuter. Calyx never typically herbaceous but represented by a pappus of numerous simple or feathery (plumose) hairs, or a smaller number of membranous scales, teeth or bristles, or by a continuous membranous ring; sometimes 0.

Corolla composed of (3-)5 united petals fused into a tube below and with a distal limb consisting of either: (1) 5 actinomorphic lobes or teeth (tubular florets); or (2) a unilateral strap-shaped limb (ray) 0-3(-4)-dentate at the apex; or (3) a unilateral strap-shaped limb (ligule), 5-dentate at the apex.

Stamens 5, borne on the corolla-tube; anthers usually fused into a cylinder around the style. Ovary inferior, 1-celled, with 1 basal ovule; style single below but branching above into 2 stigmatic arms. Fruit an achene, crowned by the pappus, sometimes with a slender beak interposed between them.

Worldwide: 1,528 genera and 22,750 species, cosmopolitan, excluding Antarctica.

Zambia: 115 genera and 449 taxa.

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Links to genera:     View: living plant images - herbarium specimen images - all images for this family

GenusContent
Acanthospermum SchrankDescription
Acmella Rich.Description
Adenostemma J.R. Forst. & G. Forst.Description
Ageratina SpachDescription
Ageratinastrum Mattf.Description
Ageratum L.Description
Ambrosia L.Description
Anisopappus Hook. & Arn.Description
Artemisia L.Description
Artemisiopsis S. MooreDescription
Aspilia ThouarsDescription
Aster L.Description
Athrixia Ker Gawl.Description
Athroisma DC.Description, Image
Berkheya Ehrh.Description
Bidens L.Description
Blainvillea Cass.Description
Blumea DC.Description
Bothriocline Oliv. ex Benth.Description
Brachythrix Wild & G.V. PopeDescription
Calostephane Benth.Description
Carduus L.Description
Centaurea L.Description
Chrysanthellum Rich.Description
Cichorium L.Description, Image
Cineraria L.Description
Cirsium Mill.Description
Conyza Less.Description
Cosmos Cav.Description
Cotula L.Description
Crassocephalum Moench.Description
Crepis L.Description
Criscianthus Grossi & J.N. Nakaj.
Dacryotrichia WildDescription
Denekia Thunb.Description
Dewildemania O. Hoffm.Description
Dichrocephala L'Hér. ex DC.Description
Dicoma Cass.Description
Distephanus Cass.Description
Doellia Sch. Bip.Description
Eclipta L.Description
Elephantopus L.Description
Emilia (Cass.) Cass.Description
Emiliella S. Moore
Enydra Lour.Description
Erlangea Sch. Bip.Description
Erythrocephalum Benth.Description
Ethulia L.f.Description
Felicia Cass.Description
Flaveria Juss.Description
Galinsoga Ruiz. & Pav.Description
Gazania Gaertn.Description
Geigeria Griess.Description
Gerbera Cass.Description
Gnaphalium L.Description
Grangea Adans.Description
Guizotia Cass.Description
Gutenbergia Sch. Bip.Description
Gynura Cass.Description
Haplocarpha Less.Description
Helianthus L.Description
Helichrysum Mill.Description
Hirpicium Cass.Description
Hypericophyllum SteetzDescription
Inula L.Description
Jeffreya WildDescription
Kleinia Mill.Description
Lactuca L.Description
Laggera Benth.Description
Launaea Cass.Description
Litogyne Harv.Description, Image
Lopholaena DC.Description
Macledium Cass.
Melanthera RohrDescription, Image
Microglossa DC.Description
Mikania Willd.Description
Mikaniopsis Milne-Redh.Description
Neojeffreya CabreraDescription
Nicolasia S. MooreDescription
Nidorella Cass.Description
Nolletia Cass.Description
Osteospermum L.Description
Pasaccardoa KuntzeDescription
Pegolettia Cass.Description
Pentanema Cass.Description
Pleiotaxis SteetzDescription
Pluchea Cass.Description
Porphyrostemma Benth. ex Oliv.Description
Pseudoconyza Cuatrec.Description
Pseudognaphalium Kirp.Description
Pteronia L.
Pulicaria Gaertn.Description
Rastrophyllum Wild & G.V. PopeDescription
Schistostephium Less.Description
Schkuhria RothDescription
Sclerocarpus Jacq.Description
Senecio L.Description
Sigesbeckia L.Description
Solanecio (Sch. Bip.) Walp.Description
Sonchus L.Description
Sphaeranthus L.Description
Spilanthes Jacq.Description
Stenops B. Nord.Description
Stoebe L.Description
Stomatanthes R.M. King & H. Rob.Description
Synedrella Gaertn.Description
Tagetes L.Description
Taraxacum F.H. Wigg.Description
Tarchonanthus L.Description
Tithonia Desf. ex Juss.Description
Tolpis Adans.Description
Tridax L.Description
Vernonia Schreb.Description
Welwitschiella O. Hoffm.
Xanthium L.Description

Other sources of information about Asteraceae:

Our websites:

Flora of Botswana: Asteraceae
Flora of Caprivi: Asteraceae
Flora of Malawi: Asteraceae
Flora of Mozambique: Asteraceae
Flora of Mozambique: cultivated Asteraceae
Flora of Zimbabwe: Asteraceae
Flora of Zimbabwe: cultivated Asteraceae

External websites:

GRIN (Germplasm Resources Information Network) taxonomy for plants report for Asteraceae
Google: Web - Images - Scholar


Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-17

Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A. (2017). Flora of Zambia: Family page: Asteraceae.
http://www.zambiaflora.com/speciesdata/family.php?family_id=26, retrieved 25 April 2017

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