Hieracium brennerianum 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 brennerianum Norrl.

Native status

Native. Riversides, tundra.

Distribution

Obo, Ks. Possibly endemic to Finland.

Notes

This species is inexplicably included in Hieracium sparsifolium Lindeb. in POWO (2025). However, the two species are completely different in their foliage (narrowly oblong to almost linear and sessile in H. sparsifolium vs. lanceolate and indistinctly petiolate in H. brennerianum ), synflorescences (long-branched in H. sparsifolium vs. short-branched in H. brennerianum ) and involucres (phyllaries narrowly triangular to almost oblong in H. sparsifolium vs. clearly triangular in H. brennerianum ). Hieracium sparsifolium was described from Norway and was not reported from Sweden ( Johansson 1929).

Diagnosis

Stems 35–45 cm tall. Basal leaves usually present at anthesis, lanceolate; cauline leaves 6–8, gradually decreasing from the stem base, lowermost ones lanceolate, base narrowly cuneate or attenuate, apex narrowly triangular, with sparse small teeth, rigid, rather dark green, glabrous, but with sparse to rather dense stellate hairs above, narrowed into indistinct petioles. Phyllaries broadly triangular, with acute apex, ca. 9 mm long, dark grey-green, with rather rare to sparse whitish simple hairs 0.5–1 mm long, rather dense glandular hairs 0.1–0.3 mm long and sparse stellate hairs along the margins, with rather broad glabrous margins, apex with indistinct very short ciliae. Synflorescence branches strongly abbreviated under the central head, with dense simple hairs, very rare to rare glandular hairs 0.1–0.2 mm long and stellate hairs. Styles with black papillae. Ligules glabrous.