Chaetopogon fasciculatus

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Chaetopogon is a monotypic genus of herbaceous plants in the Poaceae family. Its only species, Chaetopogon fasciculatus, is native to the Mediterranean region.

Description

Stems 3-40 cm tall, erect, geniculate-ascending or decumbent, glabrous. Leaves are glabrous, with a 2-4 mm ligule, and blade up to 10 x 1.5 cm, flat or convoluted when desiccated. Panicle of 1-10 cm, subcylindrical or ellipsoid, with scabrid branches and peduncles of c. 0.2mm. Spikelets 2.5-4 mm. glumes 2.5-4 mm, acute, aculeate-scabrid; the lower one finished in a 3-10 (-15) mm edge, straight. Lemma 2.5-3 mm, obtuse-dentate, glabrous. Anthers 1.4-2.2 mm. Caryopsis of 2 x 0.3 mm, linear. It has a chromosome number of 2n = 14. It flowers from April to June.

Taxonomy

Chaetopogon fasciculatus was described by (Link) Hayek and published in Repertorium Specierum Novarum Regni Vegetabilis, Beihefte 30(3): 335. 1932.

Cytology

The basic chromosome number of the genus is x = 7, with somatic chromosome numbers of 2n = 14.

Sinonimia

Agrostis articulata Brot.
Agrostis articulata Poir.
Agrostis longiseta Steud.
Agrostis subspicata (Willd.) Raspail
Agrostis triflora Steud.
Alopecurus fasciculatus (Link) Poir.
Chaeturus divaricatus DC.

Chaeturus fasciculatus Link
Chaeturus fasciculatus subsp. prostratus (Hack. & Lange)
Chaeturus prostratus Hack. " Lange
Chaeturus spicatus Schrad.
Muhlenbergia divaricata DC.
Polypogon fasciculatus (Link) Pers.
Polypogon subspicatus Willd.
Joint vilfa P.Beauv.

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