Danthonia decumbens (L.) DC.

Taxonomy: Fam. Poaceae// Genus: Danthonia// Species: Danthonia decumbens (L.) DC.

Determined according to the botanical key provided by Tutin in Tutin et al. (1980).

Lifeform:  Perennial; hemicryptophyte according to the Raunkiær system.

Distribution: Native to Macaronesia, Europe, Mediterranean to Caucasus according to the distribution information provided by The Euro+Med Plantbase (source: Valdés & Scholz; with contributions from Raab-Straube & Parolly, 2009+) and the Plants of the World Online portal (Royal Botanic Gardens, Kew).

Habitat:  Mountain pastures. Recorded on Ponikva at c.1500 – 1550 m altitude.

Flowering period: Summer: JUL.

Danthonia decumbens – habit. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – habit. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – habit. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – panicles. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – panicle. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – panicle. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – spikelets. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – spikelets. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – spikelets. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – spikelets. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – spikelets. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – spikelets. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – stem and leaves. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – vegetative shoots. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – vegetative shoots. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – vegetative shoots. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – adaxial side of leaves. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – adaxial side of leaves. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – stem, leaf sheath and leaf lamina. Ligule a row of hairs. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – stem and leaf sheath. Ligule a row of hairs. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – leaf sheath. Ligule a row of hairs. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – leaf sheath and leaf lamina of vegetative shoots. Ligule a row of hairs. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – old leaf sheaths. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – base of shoot. Osogovo – Ponikva, 20.07.2025. Photo by Trajche Dimitrovski.
Danthonia decumbens – habit. Scale in cm. Photo by Trajche Dimitrovski.
Danthonia decumbens – panicles. Scale in cm. Photo by Trajche Dimitrovski.
Danthonia decumbens – spikelets. Scale in mm. Photo by Trajche Dimitrovski.
Danthonia decumbens – florets: l – lemma; al – apex of lemma; p – palea; c – callus. Scale in mm. Photo by Trajche Dimitrovski.
Danthonia decumbens – elements of floret under magnification: A, B and C: two dentate apex of lemma with mucro in the sinus. t – teeth, m – mucro; D – middle part of lemma with hairs. l – lemma, h – hairs; E and D: base of floret with callus and hairs. c – callus, h – hairs, l – lemma. Photo by Trajche Dimitrovski.
Danthonia decumbens – leaf lamina (left) and leaf sheath with ligule (right). Scale in mm. Photo by Trajche Dimitrovski.

References:

Danthonia decumbens.Valdés, B. & Scholz, H.; with contributions from Raab-Straube, E. von & Parolly, G. 2009+: Poaceae (pro parte majore). – In: Euro+Med PlantBase – the information resource for Euro-Mediterranean plant diversity. Published at https://europlusmed.org/ https://europlusmed.org/cdm_dataportal/taxon/6f2e655d-6c67-48a3-b6f0-cc44d96fbcff  [Accessed 23.07.2025].

Danthonia decumbens (L.) DC. Plants of the World Online portal, Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:397531-1 [Accessed 23.07.2025].

Danthonia DC. Tutin, T.G. in Tutin, T.G., Heywood, V.H., Burges, N.A., Moore, D.M., Valentine, D.H., Walters, S.M. & Webb, D.A. (1980). Flora Europaea. Volume 5: Alismataceae to Orchidaceae (Monocotyledones). Cambridge: Cambridge University Press, p. 253.