Spermatophyta: Dicotyledonae: Metachlamydeae

Asteraceae - Sunflower family

Compositae

Beentje, H.J. & Ghazanfar, S.A. (eds.) (2005) Compositae (Part 3) FTEA

Beentje, H.J. (ed.) (2000) Compositae (Part 1) FTEA

Beentje, H.J. (ed.) (2002) Compositae (Part 2) FTEA

Pope, G.V. (1992) Compositae FZ 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.

Zimbabwe: 129 genera and 437 taxa.

Aspilia pluriseta

More sample images from the Asteraceae (Click on each image to see a larger version and details of the record)

Ethulia conyzoides subsp. conyzoides

Ethulia conyzoides subsp. conyzoides

Pechuel-Loeschea leubnitziae

Pechuel-Loeschea leubnitziae

Ambrosia maritima

Ambrosia maritima

Senecio oxyriifolius

Senecio oxyriifolius

Acmella radicans var. radicans

Acmella radicans var. radicans

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

GenusContent
Acanthospermum SchrankDescription, Image
Achillea L.Description, Image
Achyrocline (Less.) DC.
Acmella Rich.Image
Adenostemma J.R. Forst. & G. Forst.Description, Image
Ageratina SpachDescription, Image
Ageratum L.Description, Image
Ambrosia L.Description, Image
Anisopappus Hook. & Arn.Description, Image
Arctotis L.Description
Artemisia L.Description, Image
Artemisiopsis S. MooreDescription
Aspilia ThouarsDescription, Image
Aster L.Description, Image
Athrixia Ker Gawl.Description, Image
Athroisma DC.Description
Berkheya Ehrh.Description, Image
Bidens L.Description, Image
Blainvillea Cass.Description, Image
Blumea DC.Description, Image
Bothriocline Oliv. ex Benth.Description, Image
Brachylaena R. Br.Description
Calostephane Benth.Description, Image
Centaurea L.Description
Centratherum Cass.Description, Image
Chromolaena DC.Description, Image
Chrysanthellum Rich.Description
Chrysanthemoides Fabr.Description, Image
Cichorium L.Description
Cineraria L.Description, Image
Conyza Less.Description, Image
Coreopsis L.Description, Image
Cosmos Cav.Description, Image
Cotula L.Description, Image
Crassocephalum Moench.Description, Image
Crepis L.Description, Image
Dahlia Cav.Description, Image
Denekia Thunb.Description, Image
Dichrocephala L'Hér. ex DC.Description, Image
Dicoma Cass.Description, Image
Dimorphotheca MoenchDescription
Distephanus Cass.Description, Image
Doellia Sch. Bip.Description
Eclipta L.Description, Image
Elephantopus L.Description
Emilia (Cass.) Cass.Description, Image
Enydra Lour.Description, Image
Erigeron L.Description, Image
Erlangea Sch. Bip.Description, Image
Erythrocephalum Benth.Description, Image
Ethulia L.f.Description, Image
Euryops (Cass.) Cass.Description, Image
Felicia Cass.Description, Image
Flaveria Juss.Description, Image
Galinsoga Ruiz. & Pav.Description, Image
Gazania Gaertn.Description, Image
Geigeria Griess.Description, Image
Gerbera Cass.Description, Image
Gnaphalium L.Description, Image
Grangea Adans.Description, Image
Guizotia Cass.Description, Image
Gutenbergia Sch. Bip.Description, Image
Haplocarpha Less.Description, Image
Helianthus L.Description
Helichrysum Mill.Description, Image
Hirpicium Cass.Description, Image
Hypericophyllum SteetzDescription, Image
Hypochaeris L.Description, Image
Inula L.Description, Image
Inulanthera KällersjöDescription
Kleinia Mill.Description, Image
Lactuca L.Description, Image
Laggera Benth.Description
Launaea Cass.Description, Image
Leontodon L.Description
Litogyne Harv.Description, Image
Lopholaena DC.Description, Image
Macledium Cass.
Melanthera RohrDescription, Image
Microglossa DC.Description, Image
Mikania Willd.Description, Image
Mikaniopsis Milne-Redh.Description, Image
Montanoa Cerv.Description, Image
Neojeffreya CabreraDescription, Image
Nicolasia S. MooreDescription
Nidorella Cass.Description, Image
Nolletia Cass.Description
Osteospermum L.Description, Image
Othonna L.Description
Parthenium L.Description, Image
Pechuel-Loeschea O. Hoffm.Description, Image
Pegolettia Cass.Description, Image
Pentanema Cass.Description
Pentzia Thunb.Description
Philyrophyllum O. Hoffm.Description
Phymaspermum Less.Description, Image
Picris L.Description
Pleiotaxis SteetzDescription
Pluchea Cass.Description, Image
Porphyrostemma Benth. ex Oliv.Description
Pseudoconyza Cuatrec.Description, Image
Pseudognaphalium Kirp.Description, Image
Psiadia Jacq.Description
Pulicaria Gaertn.Description, Image
Santolina L.Description, Image
Schistostephium Less.Description, Image
Schkuhria RothDescription, Image
Sclerocarpus Jacq.Description, Image
Senecio L.Description, Image
Sigesbeckia L.Description
Solanecio (Sch. Bip.) Walp.Description, Image
Sonchus L.Description, Image
Sphaeranthus L.Description, Image
Sphagneticola O. Hoffm.Description
Spilanthes Jacq.Description, Image
Stoebe L.Description, Image
Stomatanthes R.M. King & H. Rob.Description, Image
Tagetes L.Description, Image
Taraxacum F.H. Wigg.Description, Image
Tarchonanthus L.Description, Image
Tithonia Desf. ex Juss.Description, Image
Tolpis Adans.Description, Image
Tridax L.Description, Image
Ursinea Gaertn.Description
Verbesina L.Description, Image
Vernonanthura H. Rob.Description, Image
Vernonia Schreb.Description, Image
Xanthium L.Description, Image
Zinnia L.Description, Image

Other sources of information about Asteraceae:

Our websites:

Flora of Zimbabwe: cultivated Asteraceae
Flora of Mozambique: Asteraceae | cultivated Asteraceae
Flora of Zambia: Asteraceae

External websites:

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


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-14

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2014). Flora of Zimbabwe: Family page: Asteraceae.
http://www.zimbabweflora.co.zw/speciesdata/family.php?family_id=26, retrieved 24 July 2014

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