Difference between revisions of "Rudbeckia scabrifolia"

L. E. Brown

Phytologia 61: 367, fig. 1. 1986.

Common names: Roughleaf coneflower
Treatment appears in FNA Volume 21. Treatment on page 51. Mentioned on page 47, 52.
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|elevation=10–60 m
 
|elevation=10–60 m
 
|distribution=La.;Tex.
 
|distribution=La.;Tex.
|discussion=<p>Rudbeckia scabrifolia occurs in western Louisiana and eastern Texas. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
+
|discussion=<p><i>Rudbeckia scabrifolia</i> occurs in western Louisiana and eastern Texas. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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|publication year=1986
 
|publication year=1986
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V19-20-21/V21_106.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V21_106.xml
 
|tribe=Asteraceae tribe Heliantheae
 
|tribe=Asteraceae tribe Heliantheae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae

Revision as of 15:29, 18 September 2019

Perennials, to 200 cm (rhizomatous, roots fibrous). Leaves green (dried, dark under reflected UV light), blades elliptic to lanceolate (not lobed), ± leathery, bases attenuate to cuneate or rounded, margins entire or coarsely toothed, apices acute, faces hairy; basal petiolate, 15–65 × 2–15 cm; cauline sessile (proximalmost often petiolate), 5–50 × 2–12 cm (mids ± pandurate, bases auriculate). Heads (to 15) in ± corymbiform arrays. Phyllaries to 2 cm (margins ciliate). Receptacles ovoid to ellipsoid; paleae 6–8 mm, (apical margins densely ciliate) apices acute, abaxial tips hairy. Ray florets 10–15; corollas yellow, laminae oblong to oblanceolate, 20–40 × 5–12 mm, abaxially hairy. Discs 12–25 × 12–20 mm. Disc florets 150–400+; corollas greenish yellow proximally, maroon distally, 3.5–5 mm; style branches ca. 2 mm, apices acute. Cypselae 3.5–5 mm; pappi coroniform, to 2.5 mm. 2n = 36.


Phenology: Flowering late spring–fall.
Habitat: Hillside seeps
Elevation: 10–60 m

Discussion

Rudbeckia scabrifolia occurs in western Louisiana and eastern Texas. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Selected References

None.

Lower Taxa

None.