Difference between revisions of "Rudbeckia occidentalis"

Nuttall

Trans. Amer. Philos. Soc., n. s. 7: 355. 1840.

Common names: Western coneflower
Endemic
Treatment appears in FNA Volume 21. Treatment on page 51. Mentioned on page 47.
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|common_names=Western coneflower
 
|common_names=Western coneflower
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|special_status={{Treatment/ID/Special_status
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|label=Endemic
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}}
 
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name=Rudbeckia occidentalis
 
name=Rudbeckia occidentalis
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|authority=Nuttall
 
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|rank=species
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|publication title=Trans. Amer. Philos. Soc., n. s.
 
|publication title=Trans. Amer. Philos. Soc., n. s.
 
|publication year=1840
 
|publication year=1840
|special status=
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|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V21_105.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_105.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 21:07, 5 November 2020

Perennials, to 200 cm (rhizomatous, roots fibrous). Leaves: green, blades broadly ovate to lanceolate (rarely lobed), herbaceous, bases attenuate to cuneate or broadly rounded, ultimate margins entire or serrate, apices acute, faces sparsely to densely hairy (mostly adaxially), rarely glabrous; basal petiolate, 12–30 × 3–9 cm; cauline petiolate or sessile, 5–25 × 2–10 cm. Heads in ± corymbiform arrays. Phyllaries to 3 cm (margins mostly ciliate, hairy, especially abaxially). Receptacles ovoid to columnar; paleae (proximally light brown, distally green, becoming maroon with age) 5–7 mm, apices acute to acuminate, abaxial tips densely hairy. Ray florets 0. Discs 17–45 × 12–20 mm. Disc florets 200–500+; corollas yellowish green proximally, blackish maroon distally, 4–6 mm; style branches ca. 1.2 mm, apices acute to rounded. Cypselae 3.5–5 mm; pappi coroniform, to 1.2 mm. 2n = 36.


Phenology: Flowering summer–fall.
Habitat: Open meadows, streamsides, seeps
Elevation: 1000–2800 m

Distribution

V21-105-distribution-map.gif

Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Rudbeckia occidentalis is sometimes grown as an ornamental.

Selected References

None.

Lower Taxa

None.
... more about "Rudbeckia occidentalis"
Lowell E. Urbatsch +  and Patricia B. Cox +
Nuttall +
Western coneflower +
Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
1000–2800 m +
Open meadows, streamsides, seeps +
Flowering summer–fall. +
Trans. Amer. Philos. Soc., n. s. +
Rudbeckia subg. Macrocline +
Rudbeckia occidentalis +
Rudbeckia sect. Macrocline +
species +