Hieracium schultzii

Hieracium schultzii
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Hieracium
Species: H. schultzii
Binomial name
Hieracium schultzii
Fr. 1862
Synonyms[1][2]

Hieracium schultzii, or roughstem hawkweed[3] (not to be confused with the European H. schultesii), is a North American plant species in the dandelion tribe within the sunflower family. It is widespread across much of Mexico with a few populations in Guatemala and western Texas.[4][5][6]

Hieracium schultzii is an herb 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.[7]

References

  1. The Plant List, Hieracium schultzii Fr.
  2. Tropicos, Hieracium schultzii Fr.
  3. "Hieracium schultzii". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 23 July 2015.
  4. Biota of North America Program 2014 county distribution map
  5. 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
  6. 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
  7. Flora of North America, Hieracium schultzii Fries, 1862.
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