Not to be confused with the European species of hawkweed, Pilosella schultesii.

Hieracium schultzii,[1] the roughstem hawkweed,[2] is a species of plant in the tribe Cichorieae within the family Asteraceae. It is widespread across much of Mexico with a few populations in Guatemala and western Texas.[3][4][5]

Hieracium schultzii is herbaceous and up to 70 cm (2.3 ft) tall with many hairs. Leaves are both on the stem and at the bottom. Leaves are up to 150 mm (5.9 in) long. One stalk can produce 3-25 flower heads in a conical or flat-topped array. Each head has 25-40 yellow ray flowers but no disc flowers.[6]

References

  1. ^ a b "Hieracium schultzii Fr.". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2022-08-30.
  2. ^ USDA, NRCS (n.d.). "Hieracium schultzii". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 23 July 2015.
  3. ^ Biota of North America Program 2014 county distribution map
  4. ^ Nash, D. L. 1976. Tribe XI, Cichorieae. En Nash, D.L. & Williams, L.O. (eds), Flora of Guatemala - Part XII. Fieldiana, Botany 24(12): 440–454, 598–603
  5. ^ García-Mendoza, A. J. & J. A. Meave. 2011. Diversidad Florística de Oaxaca: de Musgos a Angispermas 1–351. Universidad Nacional Autónoma de México, Ciudad Universitaria
  6. ^ Flora of North America, Hieracium schultzii Fries, 1862.