Hieracium archaeum 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 archaeum Norrl.

Native status

Native. Open forest margins, shrubs.

Distribution

Finland: Al. Not known elsewhere, possibly endemic to Finland.

Notes

Erroneously included in Hieracium subrigidum in POWO (2025).

Diagnosis

Stems 60–80 cm tall. Basal leaves withering at anthesis; cauline leaves 10–12, sparse in the basal half, dense in the upper half of the stem, rapidly decreasing in size from the middle of the stem, lowermost ones broadly elliptic-ovate to broadly rhombic-ovate, base cuneate, apex broadly triangular to subobtuse, with small sparse teeth in the basal half, rigid, dark green with purple spots, with sparse to rather dense simple hairs 1–1.5 mm long and sparse stellate hairs above, on distinct petioles; middle ones broadly lanceolate to ovate-lanceolate, base broadly cuneate. Phyllaries triangular, with acute apex, ca. 10 mm long, grey-green, with rather rare to sparse simple hairs 1.5–2 mm long, very dense glandular hairs 0.5–1 (1.5) mm long and sparse stellate hairs along the margins, apex with an indistinct coma of very short ciliae. Synflorescence branches with rare to sparse simple hairs, rather dense glandular hairs 0.2–0.5 mm long and stellate hairs. Styles with blackish (discoloured) papillae. Ligules glabrous.