Crepis pannonica

(Jacquin) K. Koch

Linnaea 23: 689. 1851.

Introduced
Basionym: Hieracium pannonicum Jacquin Collectanea 5: 148. 1796
Treatment appears in FNA Volume 19. Treatment on page 233. Mentioned on page 224.

Perennials, 30–130 cm (taproots stout, caudices branched). Stems 1, erect, branched distally, setulose and sometimes glandular proximally. Leaves mostly cauline; petiolate or sessile; blades broadly oblanceolate to elliptic, 15–30 × 4–6 cm, margins closely toothed (teeth corneous apically and sometimes along margins), apices acute, faces scabrous, ± setulose and stipitate-glandular; (cauline sessile, ovate or elliptic, bases auriculate). Heads 1–8, borne singly or (on racemiform branches) in compound, paniculiform or corymbiform arrays. Calyculi of 10–12, lanceolate to linear, sparsely tomentulous bractlets 3–5 mm. Involucres cylindro-campanulate, 10–15 × 6–12 mm. Phyllaries 12–15, lanceolate, 9–10 mm, (bases strongly thickened, margins green), apices (dark) acute, abaxial faces tomentulose, sometimes with setae, adaxial glabrous. Florets 50–90; corollas yellow, 15–18 mm (sparsely tomentulose). Cypselae brown, fusiform, 5–6 mm, apices narrowed (not beaked), ribs 15–20; pappi white (soft), 5–8 mm. 2n = 8.


Phenology: Flowering Jun–Aug.
Habitat: Dry, open, grassy areas, pastures
Elevation: 1000–2000 m

Distribution

V19-301-distribution-map.gif

Introduced; Conn., Europe.

Discussion

Crepis pannonica is recognized by its leafy, erect stems, broadly elliptic or obovate leaves with closely dentate margins, auriculate distal leaves, and tomentulose phyllaries.

Selected References

None.

Lower Taxa

None.