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

Description ( englanti )

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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
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Flora of North America Vol. 20: 572, 579, 597 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Synonym ( englanti )

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Senecio pseudaureus Rydberg, Bull. Torrey Bot. Club 24: 298. 1897
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliografinen lainaus
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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Packera pseudaurea ( englanti )

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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 ( englanti )

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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 ( vietnam )

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Tango style Wikipedia Icon.svg
Đây là một bài mồ côi vì không có hoặc có ít bài khác liên kết đến nó.
Xin hãy tạo liên kết đến bài này trong các bài của các chủ đề liên quan. (tháng 7 2018)


Packera pseudaurea là một loài thực vật có hoa trong họ Cúc. Loài này được (Rydb.) W.A.Weber & Á.Löve mô tả khoa học đầu tiên năm 1981.[1]

Chú thích

  1. ^ The Plant List (2010). Packera pseudaurea. Truy cập ngày 4 tháng 6 năm 2013.

Tham khảo

 src= Wikimedia Commons có thư viện hình ảnh và phương tiện truyền tải về Packera pseudaurea  src= Wikispecies có thông tin sinh học về Packera pseudaurea


Bài viết tông Vi hoàng này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Packera pseudaurea: Brief Summary ( vietnam )

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Packera pseudaurea là một loài thực vật có hoa trong họ Cúc. Loài này được (Rydb.) W.A.Weber & Á.Löve mô tả khoa học đầu tiên năm 1981.

lisenssi
cc-by-sa-3.0
tekijänoikeus
Wikipedia tác giả và biên tập viên
alkuperäinen
käy lähteessä
kumppanisivusto
wikipedia VI