Hieracium subarctoum 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 subarctoum Norrl.

Native status

Native. Birch forests, shrubs, tundra.

Distribution

Finland: Oa, Sb, Kb, Om, Ok, Obo, Obu, Ks, Lkk, Lks, Le, Li; Norway, Sweden ( Samuelsson 1954, Tyler 2017), northern European Russia ( Schljakov 1989, Sennikov 2008 b, Sennikov 2009).

Diagnosis

Stems 30–50 cm tall. Rosulate leaves broadly lanceolate or oblong-lanceolate, base cuneate, apex broadly triangular, with sparse very small teeth, rather rigid, grass-green, with sparse simple hairs ca. 1 mm long and stellate hairs above, on rather short petioles. Cauline leaves similar, petiolate, 1–3. Phyllaries broadly triangular, with obtuse apex, 8–9 mm long, dark grey-green, without simple hairs, with abundant glandular hairs 0.5–1 (1.2) mm long, and stellate hairs rare on the surface and sparse along the margins, apex with a small coma of short ciliae. Synflorescence branches without simple hairs, with dense glandular hairs 0.5–0.7 mm long and stellate hairs. Styles with black papillae. Ligules glabrous.