Flora of the Hawaiian Islands
Dicotyledon Literature for Picris hieracioides
Wagner et al., 1990, 1999.
   Asteraceae -- The Sunflower Family Bibliography
      Picris hieracioides

Common name(s): ox tongue, hawkweed
General Information
DistributionNative to Eurasia.In the Hawaiian Islands, naturalized on Moloka`i, Lana`i, Maui, Hawai`i.

Biennial or short-lived perennial herbs, densely hirsute or hispid, many of the hairs branched.
Leaves often quickly deciduous, oblanceolate to lanceolate or oblong, 7-30 cm long, 0.5-5 cm wide, usually abruptly reduced in upper part of stem.
Involucre 0.8-1.5 cm high, the bracts in 2 series, inner ones subequal, outer ones shorter; pappus of plumose capillary bristles, readily deciduous as a unit.
Achenes longitudinally grooved, rugose, 3.5-6 mm long, narrowed above or with a very short beak.
2n = 10, 20