Difference between revisions of "Rudbeckia triloba"
Sp. Pl. 2: 907. 1753.
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|common_names=Brown-eyed Susan | |common_names=Brown-eyed Susan | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms= | |synonyms= | ||
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-->{{Treatment/Body | -->{{Treatment/Body | ||
| − | |distribution= | + | |distribution=Ont.;Que.;Ala.;Ark.;Colo.;Conn.;Del.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Mass.;Md.;Mich.;Minn.;Miss.;Mo.;N.C.;N.J.;N.Y.;Nebr.;Ohio;Okla.;Pa.;Tenn.;Tex.;Utah;Va.;Vt.;W.Va.;Wis. |
|discussion=<p>Varieties 3 (3 in the flora).</p> | |discussion=<p>Varieties 3 (3 in the flora).</p> | ||
|tables= | |tables= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Rudbeckia triloba | name=Rudbeckia triloba | ||
| − | |||
|authority=Linnaeus | |authority=Linnaeus | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Asteraceae | |family=Asteraceae | ||
| − | |distribution= | + | |distribution=Ont.;Que.;Ala.;Ark.;Colo.;Conn.;Del.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Mass.;Md.;Mich.;Minn.;Miss.;Mo.;N.C.;N.J.;N.Y.;Nebr.;Ohio;Okla.;Pa.;Tenn.;Tex.;Utah;Va.;Vt.;W.Va.;Wis. |
|reference=None | |reference=None | ||
|publication title=Sp. Pl. | |publication title=Sp. Pl. | ||
|publication year=1753 | |publication year=1753 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_130.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae | ||
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}}<!-- | }}<!-- | ||
| − | -->[[Category:Treatment]][[Category:Rudbeckia sect. Rudbeckia]] | + | --> |
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| + | [[Category:Treatment]] | ||
| + | [[Category:Rudbeckia sect. Rudbeckia]] | ||
| + | [[Category:Revised Since Print]] | ||
Latest revision as of 18:21, 6 November 2020
Perennials, to 150 cm (rhizomatous). Stems glabrate to hirsute or strigose (hairs 1–2 mm, basal retrorse, others spreading). Leaves: blades ovate to subcordate or elliptic (not lobed), margins serrate, apices acute to acuminate, faces hirsute to strigose; basal petiolate, 10–30 × 2–8 cm, bases truncate or rounded to cordate; cauline petiolate or sessile, ovate to elliptic, proximal usually 3–5-lobed, 2–20 × 1.5–8 cm (smaller, fewer lobed distally), bases rounded to attenuate, sometimes clasping. Heads (10–30) in paniculiform arrays. Phyllaries to 1.5 cm (faces moderately hirsute). Receptacles conic to subhemispheric; paleae 5–6.5 mm, apices cuspidate (tips awnlike, 1.5+ mm), glabrous. Ray florets 8–15; laminae (corollas yellow to yellow-orange with basal maroon splotches) linear to oblanceolate, 8–30 × 3–8 mm, abaxially sparsely strigose. Discs 8–15 × 10–20 mm. Disc florets 150–300+; corollas yellowish green basally, otherwise brown-purple, 3–4 mm; style branches ca. 1.2 mm, apices obtuse to rounded. Cypselae 1.9–2.8 mm; pappi coroniform, to 0.2 mm.
Distribution
Ont., Que., Ala., Ark., Colo., Conn., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Mass., Md., Mich., Minn., Miss., Mo., N.C., N.J., N.Y., Nebr., Ohio, Okla., Pa., Tenn., Tex., Utah, Va., Vt., W.Va., Wis.
Discussion
Varieties 3 (3 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Cauline leaves (at least some) 5–7-lobed (Florida, Kentucky, North Carolina, Virginia) | Rudbeckia triloba var. pinnatiloba |
| 1 | Cauline leaves (at least some) 3-lobed | > 2 |
| 2 | Ray laminae 8–17 mm; discs 10–15 mm diam. (20–100 m; relatively widespread) | Rudbeckia triloba var. triloba |
| 2 | Ray laminae 18–30 mm; discs 15–20 mm diam. (100–1200 m; Iowa, Kentucky, North Carolina, Tennessee) | Rudbeckia triloba var. rupestris |