Hieracium acuescens 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 acuescens Norrl.

Native status

Native. Tundra.

Distribution

Finland: Le. Endemic to Finland.

Diagnosis

Stems 20–25 cm tall. Basal leaves greyish-green, lanceolate to spatulate, base narrowly cuneate to attenuate, apex triangular to narrowly subrotund, with sparse small to coarse teeth in the basal half, on a rather short petiole, with rather dense simple hairs 1–1.5 mm long above; cauline leaves 2–3, usually strongly reduced or a lowermost leaf similar to the basal ones. Synflorescence of 1 flowering head. Phyllaries very narrowly triangular to nearly linear, with acute to narrowly attenuated apex, 10–11 mm long, dark-olivaceous, with abundant black-based or dark simple hairs 1.5–2 mm long, rather dense glandular hairs 0.2–0.4 mm long and without stellate hairs, apex with abundant long ciliae. Synflorescence branches with sparse simple hairs ca. 1 mm long, dense slender glandular hairs 0.2–0.4 mm long and sparse stellate hairs (looking dark). Styles with black papillae. Ligules nearly glabrous.