Hieracium prolixum 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 prolixum Norrl.

Native status

Native. Forest margins, sparse pine forests.

Distribution

Finland: Al; Denmark ( Schou 2001), Norway, Sweden ( Samuelsson 1954, Tyler 2006 e), northern European Russia ( Schljakov 1989), Baltic countries ( Sennikov 2003 b), Belarus ( Sennikov 1999 b). Reported from other parts of Europe ( POWO 2025).

Diagnosis

Stems 40–50 cm tall. Rosulate leaves elliptic-ovate to triangular-ovate, base truncate to sagittate, apex rather acute, with prominent coarse teeth at the base, rather thick, bright-green, glabrous or with sparse simple hairs along the margins above, on rather short petioles. Cauline leaf single, reduced in size. Phyllaries narrowly triangular, with an acute apex, 9–11 mm long, grey-green, with rare to sparse dark simple hairs 0.5–0.8 (1) mm long, sparse to rather dense glandular hairs 0.3–0.6 (0.8) mm long and stellate hairs sparse in the basal part and numerous along the margins, apex with a few long ciliae. Synflorescence branches with solitary simple hairs, rare glandular hairs 0.2–0.4 mm long and stellate hairs. Styles with black papillae. Ligules glabrous.