Hieracium caespitosum, King Devil

Hieracium caespitosum
photo by Dennis Kalma

Scientific Name:
Common Name:
ITIS Number:
NRCS Symbol:
  Hieracium caespitosum Dumont.
King Devil
Asteraceae (Asters)

Plant: 30-90 cm tall; stems and bracts bristly with blackish hairs; stems 1-several, usually without leaves although 1-3 small ones may occur; plants sometimes stoloniferous

Flowers: yellow, tiny; each head a composite of tiny ray flowers, head ~25 mm across; 5-30 flower heads on top each stem

Leaves: basal, entire; hairy both sides, 5-25 cm long (including leafstalk) by 1-3 cm wide

Habitat: fields, pastures, roadsides, occasionally in woodlands

Similar Species: Six other species are similar in having primarily basal leaves, but:

  • H. pilosella, Mouse-Ear Hawkweed, has solitary flower heads and leaves are white-wooly underneath
  • H. flagellare, Large Mouse-Ear Hawkweed, has 2-4 flower heads per stem, the stem is stout, and the leaves are green and hairless underneat
  • H. floribundum, Smoothish Hawkweed, has basal leaves with hairless upper sides
  • H. venosum, Rattlesnake Weed, has leaves with reddish-purple veinns and purplish undersides
  • H. piloseloides, Glaucous King Devil, has leaves that are hairless on both sides
  • H. murorum, Wall Hawkweed, has leaves that are over 3 cm wide and are rounded or heart-shaped at the base
  • H lachenalii, European Hawkweed, has leaves 1.5-5.0 cm wide with a few teeth near the base and always has a few small leaves on the stem and is never stoloniferous

AKA: H. pratense

        Hieracium caespitosum Flora of North America