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Comments ( englanti )

tarjonnut eFloras
Plants of Verbesina virginica from near the Atlantic Coast with margins of some or most leaf blades sinuate to pinnately 3–5(–7+)-lobed have been called V. laciniata or V. virginica var. laciniata.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 21: 102, 106, 107, 108 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description ( englanti )

tarjonnut eFloras
Plants (50–)100–250+ cm (perennating bases ± erect, internodes winged, at least proximal). Leaves all or mostly alternate (proximal sometimes opposite); blades lance-ovate or lance-elliptic to lance-linear, 5–12(–22+) × 1–6(–12+) cm, sometimes pinnately lobed, bases ± cuneate, ultimate margins usually coarsely toothed to subentire, sometimes sinuate, apices acute, faces ± scabrellous to strigillose. Heads (20–)60–100+ in corymbiform to paniculiform arrays. Involucres ± obconic to turbinate, 3–5 mm diam. Phyllaries 8–12+ in 1–2 series, ± erect, spatulate to oblanceolate, 2.5–5(–7) mm. Ray florets (1–)2–3(–7); laminae 3–4(–7+) mm. Disc florets 8–12(–15); corollas ochroleucous or white. Cypselae dark brown to blackish, oblanceolate, 3.5–5+ mm, faces ± scabrellous; pappi 1.5–3+ mm. 2n = 32, 34.
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tekijänoikeus
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliografinen lainaus
Flora of North America Vol. 21: 102, 106, 107, 108 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Synonym ( englanti )

tarjonnut eFloras
Verbesina laciniata Walter, V. virginica var. laciniata A. Gray (based on V. laciniata Nuttall, not Walter)
lisenssi
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tekijänoikeus
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliografinen lainaus
Flora of North America Vol. 21: 102, 106, 107, 108 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
lähde
Flora of North America @ eFloras.org
muokkaaja
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Verbesina virginica ( englanti )

tarjonnut wikipedia EN

Verbesina virginica, known by the common names white crownbeard,[1] or frostweed[2] is a species of flowering plant in the family Asteraceae. It is native to the Southeastern United States, where it is found in calcareous soil, often in bottomland thickets and edges of woods.[3]

It is a tall biennial species. It produces heads of white flowers in late summer through fall. The name "frostweed" refers to its tendency to produce frost flowers in freezing weather.

Description

V. virginica grows to 2.1 metres (6.9 ft) tall with winged stalks and alternate, oval or lanceolate leaves. The leaves are up to 18 centimetres (7.1 in) long and 5.1 centimetres (2 in) wide and slightly toothed. Flower heads consist of multiple flowers arranged in a cluster, or corymb, at the terminal end of the stems.[4] Each flower head actually consists of 1 to 5 ray florets and 8 to 15 disk florets.[5]

Frostweed with a frost flower
Frostweed with a frost flower

References

  1. ^ USDA, NRCS (n.d.). "Verbesina virginica". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 29 July 2015.
  2. ^ "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org.
  3. ^ Verbesina virginica in Flora of North America
  4. ^ "Know Your Natives – Frostweeds "Bloom" Frost Flowers". Arkansas Native Plant Society. 26 November 2013.
  5. ^ "US Wildflower - White Crownbeard, Frostweed, Iceplant, Virginia crownbeard - Verbesina virginica". USWildflowers.com.
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Verbesina virginica: Brief Summary ( englanti )

tarjonnut wikipedia EN

Verbesina virginica, known by the common names white crownbeard, or frostweed is a species of flowering plant in the family Asteraceae. It is native to the Southeastern United States, where it is found in calcareous soil, often in bottomland thickets and edges of woods.

It is a tall biennial species. It produces heads of white flowers in late summer through fall. The name "frostweed" refers to its tendency to produce frost flowers in freezing weather.

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Verbesina virginica ( vietnam )

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Verbesina virginica là một loài thực vật có hoa trong họ Cúc. Loài này được L. miêu tả khoa học đầu tiên năm 1753.[1]

Chú thích

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

Liên kết ngoài

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Bài viết tông cúc Heliantheae 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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Verbesina virginica: Brief Summary ( vietnam )

tarjonnut wikipedia VI

Verbesina virginica là một loài thực vật có hoa trong họ Cúc. Loài này được L. miêu tả khoa học đầu tiên năm 1753.

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Wikipedia tác giả và biên tập viên
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