Pilosella hoppeana

Gristina, Emilio Di, Gottschlich, Günter & Raimondo, Francesco Maria, 2016, Pilosella Hoppeana subsp. Sicula Di Grist., Gottschl. & Raimondo (Asteraceae), a New Endemic Subspecies from Sicily (Italy), Candollea 71 (1), pp. 7-12 : 7-12

Key to the Pilosella hoppeana aggregate

1. Leaves with dense stellate hairs above....................................... P. hoppeana subsp. cilicica

1a. Leaves without stellate hairs above................ 2

2. Bracts 1.5-2 mm wide................ P. leucopsilon

2a. Bracts 2-4 mm wide............................ 3

3. Bracts blackish, pinkish-white at the margin................................ P. hoppeana subsp. hoppeana

3a. Bracts greenish-grey to greenish-white, whitish at the margin...................................... 4

4. Bracts with moderately to rather dense, 0.2-1.1(-1.4) mm long, glandular hairs and 0 to few, 0.4-1.5 mm long, simple hairs..................... P. hoppeana subsp. sicula

4a. Bracts with 0 to few, 0.1-0.5 mm long, glandular hairs and moderately to rather dense simple, 1-4 mm long, simple hairs................. P. hoppeana subsp. macrantha