Difference between revisions of "Rudbeckia amplexicaulis"
Skr. Naturhist. Selsk. 2(2): 29, plate 4. 1793.
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|common_names=Clasping or clasping-leaf coneflower | |common_names=Clasping or clasping-leaf coneflower | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Dracopis amplexicaulis | |name=Dracopis amplexicaulis | ||
|authority=(Vahl) Cassini | |authority=(Vahl) Cassini | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae;Rudbeckia;Rudbeckia sect. Dracopis;Rudbeckia amplexicaulis | |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae;Rudbeckia;Rudbeckia sect. Dracopis;Rudbeckia amplexicaulis | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Rudbeckia amplexicaulis | name=Rudbeckia amplexicaulis | ||
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|authority=Vahl | |authority=Vahl | ||
|rank=species | |rank=species | ||
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|publication title=Skr. Naturhist. Selsk. | |publication title=Skr. Naturhist. Selsk. | ||
|publication year=1793 | |publication year=1793 | ||
| − | |special status= | + | |special status=Illustrated;Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_88.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae | ||
Latest revision as of 20:15, 5 November 2020
Leaf blades 3–15 × 0.5–4 cm. Involucres 1–4 cm diam. Phyllaries spreading to reflexed, green, linear to lanceolate, herbaceous. Ray laminae spreading, eventually reflexed, elliptic to obovate, 12–30 × 7–15 mm, abaxially hirsute. Disc corollas 2.8–3.5 mm. Cypselae: each face 4–5-striate and minutely cross-rugose, glabrous; pappi 0 (cypselae each with ring of tan tissue at apex, ca. 0.1 mm). 2n = 32.
Phenology: Flowering late spring–summer.
Habitat: Open sites, moist soils
Elevation: 0–400 m
Distribution
Ala., Ark., Fla., Ga., Ill., Kans., La., Miss., Mo., N.Mex., N.Dak., Okla., S.C., Tex.
Discussion
Rudbeckia amplexicaulis grows mainly in the Gulf coastal plain and Mississippi Embayment. It may be adventive elsewhere. It is used in “native” meadow and roadside plantings and has become a problem in some agricultural crops.
Selected References
None.