Overview

Distribution

National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Physical Description

Morphology

Description

Biennials or perennials, 20–40+ cm; taprooted (caudices ascending to erect, weakly branched). Stems 1 or 2–5, loosely clustered, usually glabrous or glabrescent, sometimes sparsely tomentose throughout, axils (basal leaves) tomentose. Basal leaves (and proximal cauline) petiolate; blades obovate, oblanceolate, spatulate, or lyrate to sublyrate (± pinnately lobed, lateral lobes 3–6 pairs, smaller than terminal lobes), 40–80+ × 10–30+ mm, bases tapering, ultimate margins incised to dentate. Cauline leaves gradually reduced (sessile). Heads 10–30+ in open, corymbiform or subumbelliform arrays. Peduncles conspicuously bracteate, glabrous or tomentose. Calyculi conspicuous. Phyllaries 13–21, green (tips often yellow), 4–9+ mm, glabrous or sparsely tomentose (at least proximally). Ray florets 8–13; corolla laminae 7–10 mm. Disc florets 40–50+; corolla tubes 4–5 mm, limbs 3–4 mm. Cypselae 2–3 mm, glabrous or hirtellous on ribs; pappi 5–6 mm. 2n = 46, 92.
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Diagnostic Description

Synonym

Senecio multilobatus Torrey & A. Gray, Mem. Amer. Acad. Arts, n. s. 4: 109. 1849; S. leucoreus Greenman; S. lynceus Greene; S. nelsonii Rydberg var. uintahensis A. Nelson; S. prolixus Greenman; S. stygius Greene; S. thornberi Greenman; S. uintahensis (A. Nelson) Greenman
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Type Information

Isotype for Senecio nelsonii var. uintahensis A. Nelson
Catalog Number: US 344891
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Preparation: Pressed specimen
Collector(s): A. Nelson
Year Collected: 1898
Locality: Evanston., Uinta, Wyoming, United States, North America
  • Isotype: Nelson, A. 1899. Bull. Torrey Bot. Club. 26: 484.
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Lectotype for Senecio multilobatus Torr. & A. Gray
Catalog Number: US 767010
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Preparation: Pressed specimen
Collector(s): A. A. Heller
Year Collected: 1913
Locality: Charleston Mts., Lee Canyon., Clark, Nevada, United States, North America
Elevation (m): 2575 to 2575
  • Lectotype: Greenman, J. M. 1917. Ann. Missouri Bot. Gard. 4: 21.; Barkley, F. A. 1968. Brittonia. 20: 278.
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Holotype for Senecio stygius Greene
Catalog Number: US 47166
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): J. G. Lemmon & J. Lemmon
Year Collected: 1884
Locality: Grand Canyon of the Colorado River., Arizona, United States, North America
  • Holotype: Greene, E. L. 1909. Leafl. Bot. Observ. Crit. 2: 21.
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Isotype for Senecio lynceus Greene
Catalog Number: US 1417606
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): H. H. Rusby
Year Collected: 1883
Locality: Lynx Creek., Arizona, United States, North America
  • Isotype: Greene, E. L. 1895. Erythea. 3: 22.
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Isotype for Senecio lynceus Greene
Catalog Number: US 49361
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): H. H. Rusby
Year Collected: 1883
Locality: Lynx Creek., Arizona, United States, North America
  • Isotype: Greene, E. L. 1895. Erythea. 3: 22.
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Isotype for Senecio lynceus Greene
Catalog Number: US 782530
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): H. H. Rusby
Year Collected: 1883
Locality: Lynx Creek., Arizona, United States, North America
  • Isotype: Greene, E. L. 1895. Erythea. 3: 22.
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Isotype for Senecio lynceus Greene
Catalog Number: US 49359
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): H. H. Rusby
Year Collected: 1883
Locality: Lynx Creek., Arizona, United States, North America
  • Isotype: Greene, E. L. 1895. Erythea. 3: 22.
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: N5 - Secure

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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Wikipedia

Packera multilobata

Packera multilobata is a species of flowering plant in the aster family known by the common name lobeleaf groundsel. It is native to the western United States from California to Wyoming to New Mexico, where it is common and can be found in many habitat types.

It is an annual or perennial herb producing a single stem or a cluster of several stems up to about half a meter tall from a taproot and branching caudex unit. The leaves are divided into several lobes, often so deeply that they look like separate leaflets. The inflorescence is a wide array of flower heads lined with green or yellowish phyllaries and containing many yellow disc florets. Most heads have a fringe of yellow ray florets, but at times these can be absent.

Parts of this plant were used medicinally by Native American peoples including the Navajo and Yavapai.[1]

References

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Notes

Comments

Packera multilobata is abundant and widespread west of the Continental Divide. Both morphology and habitat vary. In colder parts of its range, plants are shorter, caudices are better developed with clustered stems, and leaf lobes are larger. In desert-like habitats, basal leaves are narrower and more finely lobed, the tomentum is often persistent, and stems are usually single.
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