Cytisus polytrichus M.Bieb., Fl. Taur.-Caucas. 3: 477 (1819)

Sennikov, Alexander N. & Tikhomirov, Valery N., 2024, Atlas Florae Europaeae notes, 35. Further critical notes on Cytisus sect. Tubocytisus (Fabaceae) in Europe, PhytoKeys 238, pp. 199-230 : 199

2. Cytisus polytrichus M.Bieb., Fl. Taur.-Caucas. 3: 477 (1819)

- Cytisus hirsutus var. polytrichus (M.Bieb.) Briq., Étud. Cytises Alpes Mar.: 171 (1894) - Cytisus hirsutus subsp. polytrichus (M.Bieb.) Hayek in Repert. Spec. Nov. Regni Veg. Beih. 30(1): 898 (1926) - Chamaecytisus polytrichus (M.Bieb.) Rothm. in Feddes Repert. Spec. Nov. Regni Veg. 53: 144 (1944) - Chamaecytisus hirsutus subsp. polytrichus (M.Bieb.) Ponert in Feddes Repert. 83: 619 (1973).

= Cytisus demissus Boiss., Fl. Orient. 2: 54 (1872) - Cytisus hirsutus var. demissus (Boiss.) Halácsy, Consp. Fl. Graec. 1: 337 (1900) - Chamaecytisus polytrichus var. demissus (Boiss.) Kuzmanov in Jordanov, Fl. Narodna Republ. Bulg. 6: 82 (1976). Type. Greece. "In Olymp. Thessaliae", P. Aucher-Éloy 1111 (holotype G; isotypes BM 000750882, K 000829496, MPU 023084).

Type.

Crimea. "Taur. merid.", Herb. Bieberstein (lectotype LE 01080952, designated by Krytzka et al. (1999: 611)).

Distribution.

Europe: France, Italy, Balkans, Greece, Crimea ( Cristofolini 1991); Asia: Russian Western Caucasus.

Notes on taxonomy and distribution.

Cytisus polytrichus sharply differs from C. hirsutus in its creeping stems, small leaves and constantly axillar flowers ( Cristofolini 1991).

Plants of this species have been known from the Western Caucasus under a wrong name, C. wulffii auct. ( Kreczetowicz 1940; Grossheim 1952). The latter species is endemic to the Crimea and differs from C. polytrichus in appressed (vs. strictly patent) hairs on its leaves and calyces ( Sennikov and Tikhomirov 2024a).

Notes on nomenclature.

Krytzka et al. (1999) designated the only suitable specimen at LE as lectotype, following the unpublished annotation by N.N. Tzvelev.