''Hieracium laevigatum'', or smooth hawkweed, is a Eurasian plant species in the tribe
Cichorieae
The Cichorieae (also called Lactuceae) are a tribe in the plant family Asteraceae that includes 93 genera, more than 1,600 sexually reproductive species and more than 7,000 apomictic species. They are found primarily in temperate regions of the E ...
within the family
Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...
. It is widespread across much of
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a subcontinent of Eurasia and it is located entirel ...
and
western Asia
Western Asia, West Asia, or Southwest Asia, is the westernmost subregion of the larger geographical region of Asia, as defined by some academics, UN bodies and other institutions. It is almost entirely a part of the Middle East, and includes Ana ...
. It is very similar to ''
Hieracium sabaudum'' and can be found on dry, more or less nutrient rich soil in light woods, grassy embankments and fields, or on walls.
''Hieracium laevigatum'' is an herb up to 60 cm (2 feet) tall, with leaves on the stem rather than in a rosette at the bottom. Leaves are lance-shaped, up to 10 cm (4 inches) long, with large teeth along the edge. One stalk branches toward the top, producing numerous flower heads. Each head has several ray flowers but no disc flowers.
[ Wilson, Linda M. 2007]
Key to Identification of Invasive and Native Hawkweeds (''Hieracium'' spp.) in the Pacific Northwest
British Columbia Ministry of Forests and Range, Forest Practices Branch, Invasive Alien Plant Program - includes line drawings and color photos of numerous species
;Subspecies
[
*''Hieracium laevigatum'' subsp. ''achalzichiense'' (Üksip) Greuter
*''Hieracium laevigatum'' subsp. ''acrifolium'' (Dahlst.) Zahn
*''Hieracium laevigatum'' subsp. ''analogum'' (Boreau) Zahn
*''Hieracium laevigatum'' subsp. ''auriglandulum'' (Wiinst.) Zahn
*''Hieracium laevigatum'' subsp. ''boreanum'' (Boreau) Zahn
*''Hieracium laevigatum'' subsp. ''calothyrsum'' (Murr) Dalla Torre & Sarnth.
*''Hieracium laevigatum'' subsp. ''chaubardianum'' (Arv.-Touv.) Zahn
*''Hieracium laevigatum'' subsp. ''coronopifolioides'' Zahn
*''Hieracium laevigatum'' subsp. ''dechyi'' Koslovsky & Zahn
*''Hieracium laevigatum'' subsp. ''deltophylloides'' Zahn
*''Hieracium laevigatum'' subsp. ''deseglisei'' (Boreau) Zahn
*''Hieracium laevigatum'' subsp. ''dryadeum'' (Boreau) Zahn
*''Hieracium laevigatum'' subsp. ''echinodermum'' Zahn
*''Hieracium laevigatum'' subsp. ''fagineum'' (Arv.-Touv.) Zahn
*''Hieracium laevigatum'' subsp. ''ficifolium'' (Arv.-Touv.) Zahn
*''Hieracium laevigatum'' subsp. ''flocciparum'' Schelk. & Zahn
*''Hieracium laevigatum'' subsp. ''glareosum'' (Lönnr.) Greuter
*''Hieracium laevigatum'' subsp. ''goriense'' Koslovsky & Zahn
*''Hieracium laevigatum'' subsp. ''gothiciforme'' (Dahlst.) Zahn
*''Hieracium laevigatum'' subsp. ''gothicum'' (Fr.) Čelak.
*''Hieracium laevigatum'' subsp. ''grandidens'' Zahn
*''Hieracium laevigatum'' subsp. ''hypopityforme'' (Üksip) Greuter
*''Hieracium laevigatum'' subsp. ''knafii'' (Čelak.) Zahn
*''Hieracium laevigatum'' subsp. ''laevigans'' Zahn
*''Hieracium laevigatum'' subsp. ''leucothyrsum'' (Litv. & Zahn) Greuter
*''Hieracium laevigatum'' subsp. ''lineatum'' (Dahlst.) Zahn
*''Hieracium laevigatum'' subsp. ''macrolygodes'' Zahn
*''Hieracium laevigatum'' subsp. ''magistri'' (Godr.) Zahn
*''Hieracium laevigatum'' subsp. ''nivale'' (Froel.) Zahn
*''Hieracium laevigatum'' subsp. ''perangustum'' (Dahlst.) Zahn
*''Hieracium laevigatum'' subsp. ''pesianum'' (Arv.-Touv. & Belli) Zahn
*''Hieracium laevigatum'' subsp. ''pictaviense'' (Sauzé & Maillard) Zahn
*''Hieracium laevigatum'' subsp. ''pseudogothicum'' (Arv.-Touv.) Zahn
*''Hieracium laevigatum'' subsp. ''retardatum'' Zahn
*''Hieracium laevigatum'' subsp. ''revolii'' (Sudre) Zahn
*''Hieracium laevigatum'' subsp. ''rigidum'' (Hartm.) Čelak.
*''Hieracium laevigatum'' subsp. ''sagotii'' (Boreau) Zahn
*''Hieracium laevigatum'' subsp. ''semiglobosum'' (Dahlst.) Zahn
*''Hieracium laevigatum'' subsp. ''stricticaule'' (Boreau) Zahn
*''Hieracium laevigatum'' subsp. ''subgracilipes'' Zahn
*''Hieracium laevigatum'' subsp. ''tridentaticeps'' (Zahn) Zahn
*''Hieracium laevigatum'' subsp. ''tridentatum'' (Fr.) Čelak.
*''Hieracium laevigatum'' subsp. ''vendeanum'' (Boreau) Zahn
*''Hieracium laevigatum'' subsp. ''vogesicola'' Zahn
]
References
External links
*
In Flora Danica as: ''H. rigidum''Czech Botany, ''Hieracium laevigatum'' Willd. – jestřábník hladký / jastrabník hladký
in Czech with photos
{{Taxonbar, from=Q1529892
laevigatum
Flora of Asia
Flora of Europe
Plants described in 1803
Taxa named by Carl Ludwig Willdenow