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 | ||
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Distribution | Native to Eurasia.In the Hawaiian Islands, naturalized on Kaua`i, Moloka`i, Lana`i, Maui, Hawai`i. | |
Habit |
Biennial or short-lived perennial herbs, densely hirsute or hispid, many of the hairs branched. |
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Leaves |
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. |
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Flowers |
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. |
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Fruit |
Achenes longitudinally grooved, rugose, 3.5-6 mm long, narrowed above or with a very short beak. |
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Chromosomes |
2n = 10, 20 |
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