Hieracium silenii (Norrl.) Norrl.

Sennikov, Alexander, 2025, The collection-based inventory and spatial analysis of Hieracium s. str. (Asteraceae) in Finland, Biodiversity Data Journal 13, pp. e 154676-e 154676 : e154676-

Hieracium silenii (Norrl.) Norrl.

Native status

Native. Sparse pine forests.

Distribution

Ab, N, Ka, St, Ta, Sa, Oa, Tb, Sb, Kb, Ok; northern European Russia ( Samuelsson 1954, Schljakov 1989, Sennikov 2000, Sennikov 2008 b), Baltic countries ( Sennikov 2003 b), Belarus ( Sennikov 1999 b).

Diagnosis

Stems 40–50 cm tall. Rosulate leaves lanceolate to oblong-lanceolate, base cuneate to broadly cuneate, apex triangular to subrotund, with minute repand dentation, rigid, grass-green, with simple hairs ca. 0.5 mm long along the margins above, on rather long petioles. Cauline leaves similar, long-petiolate, 2–4. Phyllaries broadly triangular, with broadly acute apex, 8–9 (10) mm long, grey-green, with a few short simple hairs at the base, dense glandular hairs 0.5–1 (1.2) mm long and sparse stellate hairs throughout, apex with a small coma of numerous or abundant short ciliae. Synflorescence branches with or without solitary simple hairs, with rather dense glandular hairs 0.3–0.5 (0.6) mm long and stellate hairs. Styles with black papillae. Ligules glabrous.