Hieracium umbellatum




Family Asteraceae (alt. Compositae)
Scientific name Hieracium umbellatum L.
Synonyms Hieracium acranthophorum Omang; Hieracium canadense Michaux; Hieracium canadense var. divaricatum Lepage; Hieracium canadense var. fasciculatum (Pursh) Fernald; Hieracium canadense var. hirtirameum Fernald; Hieracium canadense var. subintegrum Lepage; Hieracium columbianum Rydberg; Hieracium devoldii Omang; Hieracium ×dutillyanum Lepage; Hieracium eugenii Omang; H. kalmii Linnaeus; Hieracium kalmii var. canadense (Michaux) Reveal; Hieracium kalmii var. fasciculatum (Pursh) Lepage; Hieracium musartutense Omang; H. nepiocratum Omang; Hieracium rigorosum (Laestadius ex Almquist) Almquist ex Omang; Hieracium scabriusculum Schweinitz; Hieracium scabriusculum Schweinitz var. columbianum (Rydberg) Lepage; Hieracium scabriusculum Schweinitz var. perhirsutum Lepage; Hieracium scabriusculum Schweinitz var. saximontanum Lepage; Hieracium scabriusculum Schweinitz var. scabrum (Schweinitz) Lepage; Hieracium stiptocaule Omang; Hieracium umbellatum L. subsp. canadense (Michaux) Guppy; Hieracium umbellatum L. var. japonicum H. Hara; Hieracium umbellatum L. var. scabriusculum (Schweinitz) Farwell
Common name (Japanese common name) yanagi tapopo (ヤナギタンポポ, 柳タンポポ [meaning: willow leaved tanpopo (tanpopo = Taraxacum platycarpum)])
(English common name) narrowleaf hawkweed, northern hawkweed
Distribution (Japan) Hokkaido, Honshu, Shikoku
(Other nations) Russia, Korea, India, Pakistan, Kazakhstan, Kyrgyzstan, Tajikistan, Caucasus, Afghanistan, Iran, Turkey, Europe, Canada, USA
Habitat Mountane wet field
Chromosomal number 2n=18+0+1B, 27
Description Plants electing 30-120cm tall, hairy. Leaves 4-12cm long, 5-12mm wide. Flowers pedicels 2-5cm long, yellow head ca. 2.5-3.5cm across, flowering in August to September. Fruits 2.5-3mm long. Perennial plants.
Reference Hieracium umbellatum L.
Hieracium umbellatum L.
Hieracium umbellatum Linnaeus
Combination of plants for telling the time (WIPO Patent WO/1998/022855)



August 2008
at Nikko Botanical Garden
August 2008
at Nikko Botanical Garden
August 2008
at Nikko Botanical Garden



August 2008
at Nikko Botanical Garden