Difference between revisions of "Cirsium scariosum var. congdonii"
Sida 21: 215. 2004.
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|common_names=Rosette thistle | |common_names=Rosette thistle | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Cirsium congdonii | |name=Cirsium congdonii | ||
|authority=R. J. Moore & Frankton | |authority=R. J. Moore & Frankton | ||
| + | |publication_title=Canad. J. Bot. | ||
| + | |publication_place=45: 1738. 1967 | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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|publication year=2004 | |publication year=2004 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V19_155.xml |
|tribe=Asteraceae tribe Cardueae | |tribe=Asteraceae tribe Cardueae | ||
|genus=Cirsium | |genus=Cirsium | ||
Revision as of 18:35, 24 September 2019
Plants acaulescent or nearly so (with dense rosettes of leaves and cluster of sessile or subsessile heads). Stems absent or very short, simple, stout, fleshy, very leafy. Leaves: blades oblong to oblanceolate or elliptic, shallowly pinnately lobed or sometimes unlobed, longer spines slender, less than 1 cm, abaxial faces green and ± glabrous to white-tomentose, adaxial faces green, glabrous or villous with septate trichomes. Heads 1–many, sessile or subsessile, crowded. Involucres 2–3 cm. Phyllaries: outer and mid lanceolate to ovate, spines slender, 1–4 mm; apices of inner linear-acuminate, often twisted, entire or minutely toothed. Corollas pink to reddish purple, 22–30 mm, tubes 10–15 mm, throats 5–7.5 mm, lobes 4–7 mm; style tips 3–5 mm. Cypselae 4–4.5 mm; pappi 17–28 mm. 2n = 34 (as C. congdonii).
Phenology: Flowering summer (Jun–Aug).
Habitat: Meadows, springs, stream banks
Elevation: 1500–3100 m
Discussion
Variety congdonii grows from the Sierra Nevada of western Nevada and eastern California to the San Bernardino Mountains of southern California.
Selected References
None.