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Streambank Groundsel

Packera pseudaurea (Rydb.) W. A. Weber & Á. Löve

Description

provided by eFloras
Perennials, 20–70+ cm; fibrous-rooted (bases simple or branched, horizontal to erect). Stems usually 1, sometimes 2–4, clustered, glabrous or sparsely tomentose proximally. Basal leaves petiolate; blades usually broadly lanceolate to ovate, sometimes subhastate, 20–50+ × 20–40+ mm, bases truncate to subcordate or obtuse, margins crenate, denticulate, bluntly dentate, or sharply dentate (proximal cauline leaves petiolate; margins usually pinnately lobed to laciniate, sometimes subentire). Cauline leaves gradually reduced (becoming sessile, sometimes clasping). Heads 5–20+ in open or congested, subumbelliform arrays. Peduncles bracteate, glabrous. Calyculi inconspicuous. Phyllaries (13–)21(–30+), light green, 3–8 mm, glabrous. Ray florets 0, 8, or 13; corolla laminae 6–10+ mm. Disc florets 70–80+; corolla tubes 2.5–3.5 mm, limbs 2–3 mm. Cypselae 1–1.5 mm, glabrous; pappi 4.5–5.5 mm. 2n = 40, 44, 46, 80.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 20: 572, 579, 597 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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Synonym

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Senecio pseudaureus Rydberg, Bull. Torrey Bot. Club 24: 298. 1897
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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, 579, 597 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 pseudaurea

provided by wikipedia EN

Packera pseudaurea is a species of flowering plant in the aster family known by the common name falsegold groundsel. It is native to North America, where it can be found in western and central parts of Canada and the United States. It grows in mountain habitat such as meadows, streambanks, and woodlands.

It is a perennial herb producing usually one erect stem, sometimes a cluster of a few stems, up to about 70 centimeters in maximum height. The basal leaves have rounded, oval, or widely lance-shaped blades up to 10 centimeters long which are borne on very long petioles. Leaves higher on the stem have no petioles, their bases clasping the stem. They are narrow and pointed with serrated edges. The inflorescence bears several flower heads in a loose or dense, flat-topped array. Each head is full of yellow disc florets and most heads have several yellow ray florets, though some heads lack them.

There are three varieties of this species: var. flavula occupies a long strip of mountains from Idaho to New Mexico, var. semicordata is mainly limited to the upper Midwest region, and var. pseudaurea is distributed throughout the western part of the species' range.

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Packera pseudaurea: Brief Summary

provided by wikipedia EN

Packera pseudaurea is a species of flowering plant in the aster family known by the common name falsegold groundsel. It is native to North America, where it can be found in western and central parts of Canada and the United States. It grows in mountain habitat such as meadows, streambanks, and woodlands.

It is a perennial herb producing usually one erect stem, sometimes a cluster of a few stems, up to about 70 centimeters in maximum height. The basal leaves have rounded, oval, or widely lance-shaped blades up to 10 centimeters long which are borne on very long petioles. Leaves higher on the stem have no petioles, their bases clasping the stem. They are narrow and pointed with serrated edges. The inflorescence bears several flower heads in a loose or dense, flat-topped array. Each head is full of yellow disc florets and most heads have several yellow ray florets, though some heads lack them.

There are three varieties of this species: var. flavula occupies a long strip of mountains from Idaho to New Mexico, var. semicordata is mainly limited to the upper Midwest region, and var. pseudaurea is distributed throughout the western part of the species' range.

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