Pictorial guide to the flora of the British Isles

Comprising:

• Hieracium acamptum P. D. Sell & C. West – Witley hawkweed
• Hieracium aphyllopodioides F. N. Williams – broad-leaved hawkweed
• Hieracium calcaricola (F. Hanb.) Roffey – toothed hawkweed
• Hieracium cambricogothicum Pugsley – Llanfairfechan hawkweed
• Hieracium cantianum F. Hanb. – Kent hawkweed
• Hieracium charitodon P. D. Sell – slender-toothed hawkweed
• Hieracium eboracense Pugsley – northern hawkweed
• Hieracium gothicoides Pugsley – broad-headed hawkweed
• Hieracium hibernicum F. Hanb. – Irish hawkweed
• Hieracium linguans (Zahn) Roffey – tongue-leaved hawkweed
• Hieracium lissolepium Roffey – hairless-bracted hawkweed
• Hieracium nidense (F. Hanb.) Roffey – Nidd hawkweed
• Hieracium ornatilorum P. D. Sell & C. West – large-flowered hawkweed
• Hieracium placerophylloides Pugsley – purplish-leaved hawkweed
• Hieracium scabrisetum (Zahn) Roffey – scabrous hawkweed
• Hieracium scullyi E. F. Linton – Scully’s hawkweed
• Hieracium sparsifolium Lindeb. – sparse-leaved hawkweed
• Hieracium sparsifrons P. D. Sell & C. West – Kerry hawkweed
• Hieracium stewartii (F. Hanb.) Roffey – Stewart’s hawkweed
• Hieracium subintegrifolium Pugsley – Glenridding hawkweed
• Hieracium substrigosum (Zahn) Roffey – long-haired hawkweed
• Hieracium trichocaulon (Dahlst.) Johanss. – hairy-stemmed hawkweed
• Hieracium uiginskyense Pugsley – Uig hawkweed

Heracium sect. Tridentata is a group of hawkweeds with many stem-leaves. Bramshill (VC12: North Hampshire); 2019-08-07
In Heracium sect. Tridentata, the stem-leaves are all narrowed to a non-clasping base; the lowest leaves may be shortly petiolate. Bramshill (VC12: North Hampshire); 2019-08-07
Hieracium sect. Tridentata differs from H. sect. Hieracioides in lacking the recurved tips to the phyllaries. Bramshill (VC12: North Hampshire); 2019-08-07

All images copyright © Christopher J. Dixon unless otherwise indicated.