Difference between revisions of "Onopordum tauricum"
Sp. Pl. 3: 1687. 1803.
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|common_names=Taurian thistle;bull cottonthistle | |common_names=Taurian thistle;bull cottonthistle | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=W | ||
| + | |label=Weedy | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=I | ||
| + | |label=Introduced | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms= | |synonyms= | ||
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|elevation=600–2200 m | |elevation=600–2200 m | ||
|distribution=Calif.;Colo.;s Europe;sw Asia. | |distribution=Calif.;Colo.;s Europe;sw Asia. | ||
| + | |introduced=true | ||
|discussion=<p>Taurian thistle is a noxious weed in California and Colorado. In southeastern Colorado it sometimes grows with <i>Onopordum acanthium</i>. Putative hybrids have been observed in this area.</p> | |discussion=<p>Taurian thistle is a noxious weed in California and Colorado. In southeastern Colorado it sometimes grows with <i>Onopordum acanthium</i>. Putative hybrids have been observed in this area.</p> | ||
|tables= | |tables= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Onopordum tauricum | name=Onopordum tauricum | ||
| − | |||
|authority=Willdenow | |authority=Willdenow | ||
|rank=species | |rank=species | ||
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|publication title=Sp. Pl. | |publication title=Sp. Pl. | ||
|publication year=1803 | |publication year=1803 | ||
| − | |special status= | + | |special status=Weedy;Introduced |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_38.xml |
|tribe=Asteraceae tribe Cardueae | |tribe=Asteraceae tribe Cardueae | ||
|genus=Onopordum | |genus=Onopordum | ||
Latest revision as of 19:51, 5 November 2020
Plants 50–200 cm, herbage glandular-puberulent, sticky throughout. Stems: wings 0.5–2 cm wide. Leaves 10–30 cm, margins shallowly to deeply 1–2-pinnatifid, with 6–8 pairs of acutely triangular lobes, thinly arachnoid tomentose when young. Heads mostly borne singly at branch tips. Involucres ± spheric, 20–50 mm diam (excluding spines), base truncate to concave. Phyllaries lanceolate, bases 3–4 mm wide, glabrous or glandular-puberulent, sometimes ± cobwebby-tomentose, spines to 4 mm. Corollas purplish pink, 25–30 mm. Cypselae 5–6 mm; pappi of many whitish to tan, scabrous or minutely barbed bristles 8–10 mm. 2n = 34 (Russia).
Phenology: Flowering summer (Jun–Sep).
Habitat: Grasslands, arid woodlands, riparian areas, roadsides, agricultural lands
Elevation: 600–2200 m
Distribution
Introduced; Calif., Colo., s Europe, sw Asia.
Discussion
Taurian thistle is a noxious weed in California and Colorado. In southeastern Colorado it sometimes grows with Onopordum acanthium. Putative hybrids have been observed in this area.
Selected References
None.