Hieracium umbellatum L.

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 umbellatum L.

Native status

Native. Sparse forests, forest margins, riverside meadows, shrubs.

Distribution

Finland: whole territory; Northern (extratropical) Eurasia, North America ( POWO 2025).

Diagnosis

Stems 60–120 cm tall. Basal leaves rudimentary, withering at anthesis. Cauline leaves 10–30, oblong-lanceolate, oblong-ovate, oblong or linear, base cuneate, apex narrowly triangular, with sparse minute or long narrow teeth, rigid, rather dark-green, glabrous with sparse stellate hairs above, sessile. Phyllaries narrowly oblong, with acute apex, 8–11 mm long, pale to dark grey-green, with or without solitary simple hairs and short glandular hairs, usually with rare to sparse stellate hairs throughout, apex without ciliae. Synflorescence branches usually without simple and glandular hairs, with dense stellate tomentum. Styles with yellow or black papillae. Ligules glabrous.