Anacyclus clavatus

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1. Anacyclus clavatus (Desf.) Pers. (syn.: Anthemis clavata Desf.) (Medit.) – A rare and always ephemeral alien. First recorded in 1911 as a wool alien in the valley of river Vesdre. Subsequently observed in the ports of Antwerpen (1940) and Oostende (1949), probably as a grain alien. From 1997 onwards more regularly seen in port areas (Antwerpen, Gent, Roeselare) and always associated with grain importation (Verloove & Vandenberghe 1997). Anacyclus clavatus mostly occurs on unloading quays, by railway tracks, under grain conveyors, etc.

In general appearance Anacyclus clavatus is very reminiscent of Anthemis and is possibly overlooked in port areas. It is very characteristic in having broadly winged achenes and obovate-spathulate receptacular scales with a short, rigid mucro.

Anacyclus clavatus, Port of Antwerpen, wasteland at the Samga grain mills, September 2011, F. Verloove Anacyclus clavatus, Port of Antwerpen, wasteland at the Samga grain mills, September 2011, F. Verloove
Anacyclus clavatus, Port of Antwerpen, wasteland at the Samga grain mills, September 2011, F. Verloove
Anacyclus clavatus, fruit - Drawing S.Bellanger Anacyclus clavatus, tubular flower - Drawing S.Bellanger

Herbarium specimen

 

Selected literature:

Lambinon J. (1995) Notes taxonomiques, nomenclaturales et chorologiques relatives à la quatrième édition de la « Nouvelle Flore » de la Belgique et des régions voisines. 3. Données nouvelles sur des plantes adventices ou subspontanées en Belgique. Dumortiera 60: 1-36.

Verloove F. & Vandenberghe C. (1997) Nieuwe en interessante voederadventieven in België en aangrenzend Nederland, hoofdzakelijk in 1996. Dumortiera 68: 13-26.

Taxonomic name: 
Anacyclus clavatus (Species List)
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith