Hieracium grandidens Dahlst.

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 grandidens Dahlst.

Native status

Alien. Introduced in old parks, manors and around old summer cottages.

Distribution

Finland: N, Sa; also introduced and locally naturalised in Scandinavia ( Hylander 1943, Schou 2001, Tyler 2004 b, Tyler et al. 2015), European Russia ( Sennikov 2000, Sennikov 2006 b, Sennikov et al. 2012, Sennikov and Golubeva 2014) and Baltic countries ( Sennikov 2003 b). The native distribution area is Central Europe, from Germany to Belarus and the Baltic countries ( Sennikov 1999 b, Sennikov 2003 b, Gottschlich 2024), but its western and southern limits are uncertain. Earlier records of the native occurrence in north-western and northern Russia ( Schljakov 1989) are erroneous and referable to H. distractum or other introduced taxa ( Sennikov 2000, Sennikov 2008 b).

Notes

Schljakov (1989) and his followers ( Hackman and Sennikov 1998, Sennikov 1999 b, Sennikov 2000, Sennikov 2003 b, Sennikov 2006 b, Sennikov et al. 2012, Sennikov and Golubeva 2014) accepted Hieracium sylvularum Jord. ex Boreau as the priority name for this species. This decision disagreed with the lectotype of H. sylvularum , which was recently established by Gottschlich et al. (2011).

Diagnosis

Stems 40–60 cm tall. Rosulate leaves elliptic-ovate to lanceolate-ovate, base sagittate to truncate or broadly cuneate, with large teeth in the basal half, rigid, dark-green, with sparse simple hairs 0.5–0.8 (1) mm long above, on rather long petioles. Cauline leaf single, reduced in size. Phyllaries narrowly triangular, with acute apex, 9–10 mm long, grey-green, without simple hairs, with abundant glandular hairs 0.6–1 (1.3) mm long and sparse stellate hairs mostly along the margins, apex with a few ciliae. Synflorescence branches without simple hairs, with dense glandular hairs 0.5–0.6 mm long and stellate hairs. Styles with black papillae. Ligules glabrous.