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Cleveland's Groundsel

Packera clevelandii (Greene) W. A. Weber & Á. Löve

Comments

provided by eFloras
Packera clevelandii is known only from the North Coast Ranges and foothills of the Sierra Nevada on serpentine soils in chaparral communities. It is the only Packera with subsucculent, glaucous herbage.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 20: 572, 582 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Flora of North America Editorial Committee
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eFloras.org
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Description

provided by eFloras
Perennials, 30–80+ cm; taprooted (caudices suberect to erect, stout). Stems usually 1 (sometimes more, clustered), glaucous. Basal leaves (and proximal cauline, relatively thick and turgid) petiolate; blades lanceolate to narrowly oblanceolate, 30–100+ × 10–20+ mm, bases tapering, margins entire or subentire. Cauline leaves gradually reduced (sessile and weakly clasping; lanceolate, entire). Heads 12–20+ in open, corymbiform arrays. Peduncles conspicuously bracteate, glaucous. Calyculi conspicuous. Phyllaries (13) 21, green (tips often purple), glabrous. Ray florets 8–10(–13); corolla laminae 5–7 mm. Disc florets 25–40+; corolla tubes 2–3 mm, limbs 3–4 mm. Cypselae 1–1.5 mm, glabrous; pappi 5–6 mm. 2n = 46.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 20: 572, 582 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Synonym

provided by eFloras
Senecio clevelandii Greene, Bull. Torrey Bot. Club 10: 87. 1883 (as clevelandi); S. clevelandii var. heterophyllus Hoover
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 20: 572, 582 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Packera clevelandii

provided by wikipedia EN

Packera clevelandii is an uncommon species of flowering plant in the aster family known by the common name Cleveland's ragwort. It is endemic to California, where it is known from only two small regions, a section of the North Coast Ranges around Napa County and a part of the Sierra Nevada foothills on the opposite side of the Sacramento Valley. The plant grows in shrubby chaparral on serpentine soils.[1]

It is a perennial herb producing one or more erect stems from a taproot and caudex unit, reaching up to a meter in maximum height. The leaves are thick and fleshy, and have a waxy coating. Their blades are up to 10 centimeters long at the base of the plant, and smaller farther up.

The inflorescence contains several flower heads, each lined with green- or purple-tipped phyllaries (flower bract). The head contains many golden yellow disc florets and 8 to 13 narrow yellow ray florets each under a centimeter long.

References

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Packera clevelandii: Brief Summary

provided by wikipedia EN

Packera clevelandii is an uncommon species of flowering plant in the aster family known by the common name Cleveland's ragwort. It is endemic to California, where it is known from only two small regions, a section of the North Coast Ranges around Napa County and a part of the Sierra Nevada foothills on the opposite side of the Sacramento Valley. The plant grows in shrubby chaparral on serpentine soils.

It is a perennial herb producing one or more erect stems from a taproot and caudex unit, reaching up to a meter in maximum height. The leaves are thick and fleshy, and have a waxy coating. Their blades are up to 10 centimeters long at the base of the plant, and smaller farther up.

The inflorescence contains several flower heads, each lined with green- or purple-tipped phyllaries (flower bract). The head contains many golden yellow disc florets and 8 to 13 narrow yellow ray florets each under a centimeter long.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN