Hieracium umbricola Saelan ex 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 umbricola Saelan ex Norrl.

Native status

Native. Pine forests, forest margins, shrubs.

Distribution

Finland: Al, Ab, N, Ka, St, Ta, Sa, Oa; Norway, Sweden ( Samuelsson 1954), northern European Russia ( Schljakov 1989, Sennikov 2000) as far eastwards as Kostroma Region ( Sennikov and Golubeva 2014).

Notes

The distribution in Scandinavia may be incorrect due to the ongoing confusion with Hieracium coniops ( Samuelsson 1954, Tyler 2017).

Diagnosis

Stems 30–60 cm tall. Rosulate leaves lanceolate, oblong-lanceolate to ovate-lanceolate, base cuneate, apex triangular to narrowly triangular, with sparse small acute teeth, rather thick, dark glaucous-green, usually without simple hairs, but with sparse long-armed stellate hairs above, on rather short petioles. Cauline leaves similar, 1–2. Phyllaries triangular, with acute apex, 10–11 mm long, dark or blackish-grey-green, with rather dense, nearly half-black simple hairs 0.8–1.2 (1.5) mm long, rather rare black glandular hairs 0.1–0.3 (0.5) mm long and rare to rather dense stellate hairs throughout, apex with sparse short ciliae. Synflorescence branches with solitary to very rare simple hairs, solitary to very rare glandular hairs 0.2–0.3 mm long and stellate hairs. Styles with black papillae. Ligules glabrous.