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Eastern Hayscented Fern

Dennstaedtia punctilobula (Michx.) Moore

Comments

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Reports of occurrences of Dennstaedtia punctilobula in Iowa are based on incorrectly labeled specimens collected in Massachusetts (T. S. Cooperrider 1968). Dennstaedtia punctilobula spreads aggressively in open woods and clearings.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description

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Stems long-creeping, 2--3 mm diam. Leaves clustered, erect, 0.4--1(--1.3) × 0.1--0.3 m. Petiole straw-colored to brown, darker at base, dull, ca. 1/2 length of blade, pubescent with soft, jointed hairs. Blade yellow-green or pale green, dull, lanceolate, 2-pinnate-pinnatifid, ca. 3 times as long as wide, base slightly narrowed but truncate, apex acuminate, with soft, silver-gray, jointed hairs on both surfaces. Basal segments of pinnules opposite; ultimate segments ovate to lanceolate, base equilateral, truncate, margins deeply lobed, serrate-crenate. Sori globose to almost cylindric; indusia tubular to cylindric. Spores trilete, globose with low, tuberculate, distal face and equatorial flange. 2 n = 68.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Distribution

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N.B., Nfld., N.S., Ont., P.E.I., Que.; Ala., Ark., Conn., Del., Ga., Ill., Ind., Ky., Maine, Md., Mass., Mich., Mo., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.
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. 2 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
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Habitat

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Sporulates in summer. Rocky slopes, meadows, woods, stream banks, and roadsides, in acid soils; 0--1200m.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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Synonym

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Nephrodium punctilobulum Michaux, Fl. Bor.-Amer. 2: 268. 1803
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Dennstaedtia punctilobula

provided by wikipedia EN

Dennstaedtia punctilobula, the eastern hayscented fern[2] or hay-scented fern, is a species of fern native to eastern North America, from Newfoundland west to Wisconsin and Arkansas, and south in the Appalachian Mountains to northern Alabama; it is most abundant in the east of its range, with only scattered populations in the west.[3]

It is a deciduous fern with fronds growing to 40–100 cm (rarely 130 cm) tall and 10–30 cm broad; the fronds are bipinnate, with pinnatifid pinnules about three times as long as broad. It occurs in damp or dry acidic soils in woods or open woods, from sea level up to 1,200 m altitude.[3]

Dennstaedtia punctilobula can exhibit varying degrees of phototropism. The common name "Hay-scented Fern" comes from the fact that crushing it produces an aroma of fresh hay.

The presence of Dennstaedtia punctilobula influences the dynamics of the understory vegetation of many forests in the eastern United States. An abundance of Rubus allegheniensis in open areas encourages new tree seedlings. Where the effects of herbivorous animals (such as deer) reduce the abundance of Rubus allegheniensis, Dennstaedtia punctilobula, which is not browsed by deer, takes over. Where Dennstaedtia punctilobula becomes common, the growth of tree seedlings is restricted.[4]

References

  1. ^ "NatureServe Explorer 2.0 Dennstaedtia punctilobula Eastern Hay-scented Fern". explorer.natureserve.org.
  2. ^ USDA, NRCS (n.d.). "Dennstaedtia punctilobula". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 13 August 2016.
  3. ^ a b Nauman, Clifton E.; Evans, A. Murray (1993). "Dennstaedtia punctilobula". In Flora of North America Editorial Committee (ed.). Flora of North America. Flora of North America North of Mexico. Vol. 2. New York and Oxford: Oxford University Press.
  4. ^ Levin, Simon A., ed. (2009). "Wildlife Management". The Princeton Guide to Ecology. Princeton: Princeton University Press.
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Dennstaedtia punctilobula: Brief Summary

provided by wikipedia EN

Dennstaedtia punctilobula, the eastern hayscented fern or hay-scented fern, is a species of fern native to eastern North America, from Newfoundland west to Wisconsin and Arkansas, and south in the Appalachian Mountains to northern Alabama; it is most abundant in the east of its range, with only scattered populations in the west.

It is a deciduous fern with fronds growing to 40–100 cm (rarely 130 cm) tall and 10–30 cm broad; the fronds are bipinnate, with pinnatifid pinnules about three times as long as broad. It occurs in damp or dry acidic soils in woods or open woods, from sea level up to 1,200 m altitude.

Dennstaedtia punctilobula can exhibit varying degrees of phototropism. The common name "Hay-scented Fern" comes from the fact that crushing it produces an aroma of fresh hay.

The presence of Dennstaedtia punctilobula influences the dynamics of the understory vegetation of many forests in the eastern United States. An abundance of Rubus allegheniensis in open areas encourages new tree seedlings. Where the effects of herbivorous animals (such as deer) reduce the abundance of Rubus allegheniensis, Dennstaedtia punctilobula, which is not browsed by deer, takes over. Where Dennstaedtia punctilobula becomes common, the growth of tree seedlings is restricted.

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Dennstaedtia punctilobula ( French )

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Dennstaedtia punctilobula, ou Fougère à lobules ponctués[réf. nécessaire] est une espèce de fougères de la famille des Dennstaedtiaceae.

Liste des formes

Selon Tropicos (23 mai 2013)[1] (Attention liste brute contenant possiblement des synonymes) :

  • forme Dennstaedtia punctilobula fo. cristata Clute
  • forme Dennstaedtia punctilobula fo. nana Weath.
  • forme Dennstaedtia punctilobula fo. poyseri Clute
  • forme Dennstaedtia punctilobula fo. punctilobula
  • forme Dennstaedtia punctilobula fo. schizophylla Rugg

Notes et références

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Dennstaedtia punctilobula: Brief Summary ( French )

provided by wikipedia FR

Dennstaedtia punctilobula, ou Fougère à lobules ponctués[réf. nécessaire] est une espèce de fougères de la famille des Dennstaedtiaceae.

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Dennstaedtia punctilobula ( Dutch; Flemish )

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Dennstaedtia punctilobula is een varen uit de adelaarsvarenfamilie (Dennstaedtiaceae).

Het is een soort uit Noord-Amerika die, net als de adelaarsvaren hier, dikwijls in grote kolonies voorkomt.

Naamgeving en etymologie

  • Synoniemen: Nephrodium punctilobulum Michaux 1803
  • Engels: Hay-scented fern, eastern hay-scented fern
  • Frans: Dennstaedtie à lobules ponctués

Dennstaedtia is vernoemd naar de Duitse botanicus August Wilhelm Dennstaedt (1776-1826). De soortaanduiding punctilobula is afkomstig van het Latijnse 'punctum' (doorprikt) en het Oudgriekse 'λοβός', lobos (lob of lel).

Kenmerken

Dennstaedtia punctilobula heeft een lange, dunne, kruipende rizoom. De bladen staan gegroepeerd en zijn tot 1 m lang en 30 cm breed, lancetvormig van vorm met licht versmalde basis en spitse top, geelgroen tot lichtgroen gekleurd, tweevoudig geveerd, en aan beide zijden bezet met zachte, zilvergrijze haren. Er is geen onderscheid tussen vruchtbare en onvruchtbare bladen.

De bladsteel is geel of bruin, donker aan de basis, ongeveer half zo lang als de bladschijf, eveneens met korte, zachte haren bezet. De pinnulae of bladslipjes zijn ovaal tot lancetvormig, diep gelobd en de randen gekarteld. De bladen geven bij kneuzing een hooiachtige geur af.

De sporenhoopjes zijn rond of cilindrisch en liggen op de onderzijde van de blaadjes. Ze worden afgedekt door een eveneens rond of cilindrisch dekvliesje.

Habitat en verspreiding

Dennstaedtia punctilobula is een terrestrische varens die in kolonies groeit. Hij komt vooral voor op zure bodems, zoals op stenige plaatsen, graslanden, bossen en wegbermen , van zeeniveau tot 1.200 m hoogte.

De varen is inheems in oostelijk Noord-Amerika, van Newfoundland in het oosten tot Wisconsin en Arkansas in het westen, en zuidelijk tot in de Appalachen en noordelijk Alabama, maar is vooral abundant in het oosten van zijn verspreidingsgebied.

Bronnen, noten en/of referenties
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Dennstaedtia punctilobula: Brief Summary ( Dutch; Flemish )

provided by wikipedia NL

Dennstaedtia punctilobula is een varen uit de adelaarsvarenfamilie (Dennstaedtiaceae).

Het is een soort uit Noord-Amerika die, net als de adelaarsvaren hier, dikwijls in grote kolonies voorkomt.

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Myskebregne ( Norwegian )

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Myskebregne (latin: Dennstaedtia punctilobula) er en art av flerårige bregner innenfor Dennstaedtiaslekten i einstapefamilien.

Jordstenglene er krypende like under bakken. Planten skilles fra einstape ved at hele bladplatenes kontur er lansettformet og ikke trekantet. Bladene har et relativt langt bladskaft, som er snaut nederst men som oppover får hårdekke og kjertelhår. Selve bladene er tre ganger fliket, mellomgrønne og har kjertelhårene på undersiden. De ter 15-22 primærfliker, lansettformede sekundærfliker, og disse har grove tenner eller tertiærfliker.

Sporehushopene (sori) på denne bregnen er små, og sitter nær bladkanten.

I Norden får vi av og til besøk av isolerte forekomster av myskebregne i det sørvestre Sverige, men neppe i Norge. USA (Appalachene), og spredt i Europa sør for Norden.

Eksterne lenker

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Myskebregne: Brief Summary ( Norwegian )

provided by wikipedia NO

Myskebregne (latin: Dennstaedtia punctilobula) er en art av flerårige bregner innenfor Dennstaedtiaslekten i einstapefamilien.

Jordstenglene er krypende like under bakken. Planten skilles fra einstape ved at hele bladplatenes kontur er lansettformet og ikke trekantet. Bladene har et relativt langt bladskaft, som er snaut nederst men som oppover får hårdekke og kjertelhår. Selve bladene er tre ganger fliket, mellomgrønne og har kjertelhårene på undersiden. De ter 15-22 primærfliker, lansettformede sekundærfliker, og disse har grove tenner eller tertiærfliker.

Sporehushopene (sori) på denne bregnen er små, og sitter nær bladkanten.

I Norden får vi av og til besøk av isolerte forekomster av myskebregne i det sørvestre Sverige, men neppe i Norge. USA (Appalachene), og spredt i Europa sør for Norden.

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Dennstaedtia punctilobula ( Vietnamese )

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Dennstaedtia punctilobula là một loài thực vật có mạch trong họ Dennstaedtiaceae. Loài này được (Michx.) T. Moore miêu tả khoa học đầu tiên năm 1857.[1]

Hình ảnh

Chú thích

  1. ^ The Plant List (2010). Dennstaedtia punctilobula. Truy cập ngày 13 tháng 8 năm 2013.

Liên kết ngoài


Bài viết liên quan đến họ dương xỉ Dennstaedtiaceae 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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Dennstaedtia punctilobula: Brief Summary ( Vietnamese )

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Dennstaedtia punctilobula là một loài thực vật có mạch trong họ Dennstaedtiaceae. Loài này được (Michx.) T. Moore miêu tả khoa học đầu tiên năm 1857.

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