Common Hawkweed - Hieracium vulgatum f. vulgatum

Description

Short to tall hairy plant, basal leaves (few in number) - lanceolate to oval, toothed, stem leaves similar, the upper smaller and unstalked. Leaves often purple blotched beneath. Flowerheads yellow in a spreading flat topped cluster. Flower bracts hairy and glandular. We have to thank national expert Vince Jones who determined this to species level.

Similar Species

Many other Hawkweeds

Identification difficulty
ID checklist (your specimen should have all of these features)

Identifying most Hieracium to species-level is extremely difficult, and can only be done from a specimen by an expert in the genus.  Stace (4th edition) separates the 415 microspecies into 15 sections which can be identified with care on the basis of leaf characteristics.

Recording advice

A specimen is required for verification

Habitat

Rocky grassland and banks.

When to see it

June to August.

Life History

Perennial.

UK Status

More common in Northern Britain than in the South.

VC55 Status

Infrequent in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 13 of the 617 tetrads.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species profile

Common names
Common Hawkweed, Pale-headed Hawkweed
Species group:
flowering plant
Kingdom:
Plantae
Order:
Asterales
Family:
Asteraceae
Records on NatureSpot:
3
First record:
06/06/2013 (Calow, Graham)
Last record:
22/07/2020 (Calow, Graham)

Total records by month

% of records within its species group

10km squares with records

The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.

In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.

Latest images

Latest records

Photo of the association

Uroleucon obscurum

Uroleucon obscurum has been recorded on 26 Hieracium species. The species does not host alternate. It can be found on the upper parts of stems of Hawkweeds (Hieracium spp.).  Adult apterae of Uroleucon obscurum are reddish brown to bronze with black antennae and siphunculi and a yellow cauda. The body length of an adult Uroleucon obscurum aptera is rather less than for most species at 1.8 to 3.7 mm.

Photo of the association

Aulacidea hieracii

The larvae of the Cynipid gall wasp Aulacidea hieracii gall the stems of Hieracium species. The galls are rounded swellings up to 4 cm long. The part of the plant above the gall is usually strongly suppressed. The gall may be smooth, but can also be covered by erect white hairs, it is green and succulent at first becoming hard and brown later. Each gall contains several chambers each containing a whitish larva or a pupa.