Hieracium griseellum Brenner

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 griseellum Brenner

Synonym: Hieracium mixopolium Dahlst.

Native status

Native. Open forest margins, shrubs.

Distribution

Finland: Al, Ab, N, Ta, Sa; Sweden ( Johansson 1929), northern European Russia ( Schljakov 1989, Sennikov 2000), Estonia ( Sennikov 2003 b).

Notes

This species was included in Hieracium godbyense in the recent sources ( Hackman and Sennikov 1998, Sennikov 2000, Sennikov 2003 b, POWO 2025).

Diagnosis

Stems 70–110 cm tall. Basal leaves 1–3, withering or present at anthesis; cauline leaves 15–20, evenly and densely situated on the stem, gradually decreasing in size from the stem base, lowermost ones lanceolate to oblong-lanceolate, base cuneate, apex broadly triangular, with sparse small to prominent acute teeth, rigid, dark green, with sparse simple hairs 0.5–1 mm long (largely along the margins) and numerous stellate hairs above, on indistinct petioles, middle ones ovate-lanceolate, base broadly cuneate. Phyllaries narrowly triangular, with acute apex, ca. 9 mm long, grey-green, with rather rare to sparse black-based simple hairs 0.5–1 mm long, rather dense glandular hairs 0.3–0.5 mm long along the middle line and dense stellate hairs throughout (much resembling the phyllaries of H. vulgatum ), apex without ciliae. Synflorescence branches with very rare simple hairs, solitary glandular hairs 0.1–0.2 mm long and stellate hairs. Styles with blackish (discoloured) papillae. Ligules glabrous.