Difference between revisions of "Centaurea diluta"
Hort. Kew. 3: 261. 1789.
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|common_names=North African knapweed | |common_names=North African knapweed | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=I | ||
| + | |label=Introduced | ||
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|basionyms= | |basionyms= | ||
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|elevation=0–100 m | |elevation=0–100 m | ||
|distribution=Calif.;Mo.;N.Y.;sw Europe;n Africa. | |distribution=Calif.;Mo.;N.Y.;sw Europe;n Africa. | ||
| + | |introduced=true | ||
|tables= | |tables= | ||
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|publication title=Hort. Kew. | |publication title=Hort. Kew. | ||
|publication year=1789 | |publication year=1789 | ||
| − | |special status= | + | |special status=Introduced |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_224.xml |
|tribe=Asteraceae tribe Cardueae | |tribe=Asteraceae tribe Cardueae | ||
|genus=Centaurea | |genus=Centaurea | ||
Latest revision as of 19:50, 5 November 2020
Annuals or perennials, to 200 cm. Stems simple proximally, openly branched distally, glabrous or thinly hairy. Leaves thinly pubescent, basal and proximal cauline petiolate, blades 10–15 cm, margins coarsely pinnately lobed; mid cauline sessile or short-petiolate, short-decurrent, blades obovate or narrowly oblong, 2–8 cm, entire to pinnately lobed; distal cauline oblong, entire to irregularly lobed. Heads radiant, in open cymiform arrays, pedunculate. Involucres ovoid, 8–15 mm diam. Principal phyllaries: bodies greenish, ovate, scarious-margined, appendages stramineous to brown, scarious, fringed with slender teeth, tipped by slender spines 1–5 mm. Innermost phyllaries unarmed with brown, expanded, lacerate appendages. Florets many; corollas pink-purple, those of sterile florets 25–30 mm, enlarged, raylike, those of fertile florets ± 20 mm. Cypselae tan, 3–3.5 mm; pappi many, white, unequal bristles 3–5 mm. 2n = 20.
Phenology: Flowering spring (Apr–Jun).
Habitat: Escaped from cultivation in disturbed sites
Elevation: 0–100 m
Distribution
Introduced; Calif., Mo., N.Y., sw Europe, n Africa.
Discussion
Selected References
None.