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Canyon Ironwood

Ostrya knowltonii Coville

Comments

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Ostrya knowltonii occurs sporadically throughout the arid Southwest, including both rims of the Grand Canyon. On the basis of morphology and phytogeography, it appears to be more closely allied with Ostrya in mountainous western Mexico than with the eastern O . virginiana .
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Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description

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Trees , to 9 m; crowns open, narrowly rounded. Bark brownish gray, broken into narrow vertical scales or rather ragged strips. Twigs sparsely to moderately pubescent, often with stipitate glands. Leaves: petiole covered with stipitate glands. Leaf blade ovate or broadly ovate-elliptic to broadly elliptic or nearly orbiculate, 2.5--6.5 × 1.5--5 cm, base narrowly rounded to cordate or cuneate, margins sharply and unevenly doubly serrate, apex acute; surfaces abaxially pubescent, especially on veins. Inflorescences: staminate catkins 2--3 cm; pistillate catkins 0.6--1 cm. Infructescences 2.5--4 × 1.8--2.5 cm; bracts 1--1.8 × 0.5--1 cm.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Distribution

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Ariz., N.Mex., Tex., Utah.
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Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flowering/Fruiting

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Flowering late spring.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Habitat

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Streamsides and rocky slopes in moist canyons; 1200--2400m.
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Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Synonym

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Ostrya baileyi Rose
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Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Common Names

provided by Fire Effects Information System Plants
More info for the term: tree

Knowlton's hophornbeam
ironwood
western hophornbeam
woolly hophornbeam
wolf hophornbeam


TAXONOMY:
The scientific name of Knowlton's hophornbeam is Ostrya knowltonii
Coville (Betulaceae) [9,10,7,23]. There are no recognized infrataxa.


LIFE FORM:
Tree

FEDERAL LEGAL STATUS:
No special status

OTHER STATUS:
NO-ENTRY





DISTRIBUTION AND OCCURRENCE
SPECIES: Ostrya knowltonii
GENERAL DISTRIBUTION:
Knowlton's hophornbeam is found in southeastern Utah, northern Arizona,
southeastern New Mexico (in the Guadalupe and Sacramento mountains in
Eddy County), and northern Trans-Pecos Texas. It is not a common tree
and its occurrence is sporadic even in these areas [9,10,18,23].
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bibliographic citation
Tesky, Julie L. 1994. Ostrya knowltonii. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Distribution

provided by Fire Effects Information System Plants
More info for the term: tree

Knowlton's hophornbeam is found in southeastern Utah, northern Arizona,
southeastern New Mexico (in the Guadalupe and Sacramento mountains in
Eddy County), and northern Trans-Pecos Texas. It is not a common tree
and its occurrence is sporadic even in these areas [9,10,18,23].



Distribution of Knowlton's hophornbeam. Map courtesy of USDA, NRCS. 2018. The PLANTS Database.
National Plant Data Team, Greensboro, NC [2018, July 20] [21].

license
cc-publicdomain
bibliographic citation
Tesky, Julie L. 1994. Ostrya knowltonii. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Key Plant Community Associations

provided by Fire Effects Information System Plants
More info for the terms: association, forest, mesic, xeric

Knowlton's hophornbeam is commonly found in oak (Quercus spp.) woodlands,
pinyon (Pinus spp.)-juniper (Juniperus spp.) woodlands, and lower
ponderosa pine (Pinus ponderosa) forest zones [9]. In Texas it is a
component of the gray oak (Quercus grisea)-true pinyon (Pinus
edulis)-alligator juniper (Juniperus deppeana) association at 5,000 to
7,000 feet (1,524-2,133 m) and the ponderosa pine-Douglas fir
(Pseudotsuga menziesii) association at 6,000 to 7,500 feet (1,828-2,286
m). In Texas it is also associated with Texas madrone (Arbutus
texana), southwestern white pine (Pinus strobiformis), chinkapin oak (Q.
muehlenbergii), and bigtooth maple (Acer grandidentatum) [18]. In
deciduous canyon woodlands of Guadalupe Mountains National Park, Texas,
Knowlton's hophornbeam will increasingly replace wavyleaf oak (Q.
undulata), alligator juniper, Riogrande cottonwood (Populus deltoides
ssp. wislizenii) and little walnut (Juglans microcarpa) as the moisture
gradient goes from xeric to mesic. Knowlton's hophornbeam is replaced by
bigtooth maple and chinkapin oak, especially on upper terraces, around
springs and in canyonheads [6,13].
license
cc-publicdomain
bibliographic citation
Tesky, Julie L. 1994. Ostrya knowltonii. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Life Form

provided by Fire Effects Information System Plants
More info for the term: tree

Tree
license
cc-publicdomain
bibliographic citation
Tesky, Julie L. 1994. Ostrya knowltonii. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Management considerations

provided by Fire Effects Information System Plants
Hophornbeam species (Ostrya spp.) suffer from few insect pests or
diseases, and none of these are regarded to be of economic importance
[4].
license
cc-publicdomain
bibliographic citation
Tesky, Julie L. 1994. Ostrya knowltonii. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Phenology

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More info on this topic.

More info for the term: fruit

Knowlton's hophornbeam flowers are produced from March through May before
or with the leaves [15,23]. The fruit of hophornbeam species matures
and is dispersed during the same season as pollination. In most
hophornbeam species, the staminate catkins are produced the growing
season before anthesis and are exposed during the winter. The
pistillate catkins develop in the spring with the new shoots, with
anthesis occurring as the leaves are forming [4].
license
cc-publicdomain
bibliographic citation
Tesky, Julie L. 1994. Ostrya knowltonii. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Taxonomy

provided by Fire Effects Information System Plants
The scientific name of Knowlton's hophornbeam is Ostrya knowltonii
Coville (Betulaceae) [9,10,7,23]. There are no recognized infrataxa.
license
cc-publicdomain
bibliographic citation
Tesky, Julie L. 1994. Ostrya knowltonii. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Distribution ( Spanish; Castilian )

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Chile Central
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Universidad de Santiago de Chile
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Pablo Gutierrez
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Ostrya chisosensis ( German )

provided by wikipedia DE

Ostrya chisosensis ist ein kleiner Baum aus der Gattung der Hopfenbuchen (Ostrya). Das natürliche Verbreitungsgebiet der Art liegt in Texas in den Vereinigten Staaten. Nach R. Govaerts ist die Art aber ein Synonym von Ostrya knowltonii Coville.[1]

Beschreibung

Ostrya chisosensis ist ein bis zu 12 Meter hoher Baum mit offener und zylindrischer Krone. Die Rinde ist graubraun und in vertikalen Streifen zerrissen. Die Zweige sind spärlich bis locker, jedoch nicht drüsig behaart. Die Laubblätter haben einen behaarten bis kahlen, nicht drüsig behaarten Stiel. Die Blattspreite ist 3,5 bis 5 Zentimeter lang und 2 bis 3 Zentimeter breit, breit-elliptisch bis elliptisch-lanzettlich, mit spitzer oder stumpfer Spitze, schmal gerundeter bis herzförmiger oder keilförmiger Basis und fein doppelt gesägtem Blattrand. Die Blattunterseite ist spärlich behaart, besonders entlang den Blattadern.[2]

Die männlichen Blütenstände sind 3 bis 4 Zentimeter lange, die weiblichen 0,8 bis 1,5 Zentimeter lange Kätzchen. Die Fruchtstände sind 2 bis 4 Zentimeter lang und haben Durchmesser von 1,5 bis 2,5 Zentimeter. Die Tragblätter sind 1 bis 1,8 Zentimeter lang und 0,5 bis 1 Zentimeter breit. Ostrya chisosensis blüht im Spätfrühling.[2]

Vorkommen

Das natürliche Verbreitungsgebiet der Art liegt in Texas in den Vereinigten Staaten.[3] Man findet sie endemisch nur im Big-Bend-Nationalpark. Ostrya chisosensis wächst entlang von Flussläufen und auf feuchten Hängen in Höhen von 1500 bis 2300 Metern.[2]

Systematik

Ostrya chisosensis ist eine Art aus der Gattung der Hopfenbuchen (Ostrya). Diese wird in der Familie der Birkengewächse (Betulaceae), der Unterfamilie der Haselnussgewächse (Coryloideae) zugeordnet.[3] Die Art wurde 1965 von Donovan Stewart Correll erstmals wissenschaftlich beschrieben.[3] Der Gattungsname Ostrya stammt aus dem Lateinischen und wurde schon von den Römern für die Hopfenbuche verwendet.[4]

Nachweise

Literatur

  • Flora of North America Editorial Committee (Hrsg.): Flora of North America North of Mexico. Volume 3: Magnoliophyta: Magnoliidae and Hamamelidae. Oxford University Press, New York / Oxford u. a. 1997, ISBN 0-19-511246-6 (englisch).
  • Helmut Genaust: Etymologisches Wörterbuch der botanischen Pflanzennamen. 3., vollständig überarbeitete und erweiterte Auflage. Nikol, Hamburg 2005, ISBN 3-937872-16-7 (Nachdruck von 1996).

Einzelnachweise

  1. Rafaël Govaerts (Hrsg.): Ostrya. In: World Checklist of Selected Plant Families (WCSP) – The Board of Trustees of the Royal Botanic Gardens, Kew, abgerufen am 18. September 2018.
  2. a b c John J. Furlow: Ostrya chisosensis, in der Flora of North America, Band 3
  3. a b c Ostrya chisosensis. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, abgerufen am 2. Juni 2012 (englisch).
  4. Genaust: Etymologisches Wörterbuch der botanischen Pflanzennamen, S. 446–447

Weblinks

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Ostrya chisosensis: Brief Summary ( German )

provided by wikipedia DE

Ostrya chisosensis ist ein kleiner Baum aus der Gattung der Hopfenbuchen (Ostrya). Das natürliche Verbreitungsgebiet der Art liegt in Texas in den Vereinigten Staaten. Nach R. Govaerts ist die Art aber ein Synonym von Ostrya knowltonii Coville.

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Ostrya chisosensis

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Ostrya chisosensis, common name Big Bend hop-hornbeam or Chisos hop-hornbeam, is a plant species endemic to Texas. It is known only from the Chisos Mountains inside Big Bend National Park, in Brewster County, although related populations in northern Chihuahua have not been studied in detail and may be the same species. It grows along streambanks and on the walls of canyons.[3]

Ostrya chisosensis is a tree up to 12 m tall. Bark splits into narrow vertical strips. Leaves broadly elliptic to lanceolate, lacking glandular hairs. Staminate (male) catkins are 3.5–5 cm long.[3][4][5][6]

References

  1. ^ Tropicos
  2. ^ The Plant List
  3. ^ a b Flora of North America vol 3
  4. ^ Correll, Donovan Stewart. 1965. Some additions and corrections to the flora of Texas. Wrightia 3(7): 126-140.
  5. ^ Murray, Albert Edward. 1983. Kalmia 13: 10.
  6. ^ Correll, D. S. & M. C. Johnston. 1970. Manual of the Vascular Plants of Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.
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Ostrya chisosensis: Brief Summary

provided by wikipedia EN

Ostrya chisosensis, common name Big Bend hop-hornbeam or Chisos hop-hornbeam, is a plant species endemic to Texas. It is known only from the Chisos Mountains inside Big Bend National Park, in Brewster County, although related populations in northern Chihuahua have not been studied in detail and may be the same species. It grows along streambanks and on the walls of canyons.

Ostrya chisosensis is a tree up to 12 m tall. Bark splits into narrow vertical strips. Leaves broadly elliptic to lanceolate, lacking glandular hairs. Staminate (male) catkins are 3.5–5 cm long.

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Ostrya knowltonii ( Vietnamese )

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Ostrya knowltonii là một loài thực vật có hoa trong họ Betulaceae. Loài này được Sarg. mô tả khoa học đầu tiên năm 1894.[4]

Chú thích

  1. ^ Tesky, Julie L. 1994. Ostrya knowltonii. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory.
  2. ^ Ostrya knowltonii. Flora of North America.
  3. ^ Ostrya knowltonii. The Nature Conservancy.
  4. ^ The Plant List (2010). Ostrya knowltonii. Truy cập ngày 14 tháng 9 năm 2013.

Liên kết ngoài


Hình tượng sơ khai Bài viết Bộ Cử (Fagales) 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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Ostrya knowltonii: Brief Summary ( Vietnamese )

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Ostrya knowltonii là một loài thực vật có hoa trong họ Betulaceae. Loài này được Sarg. mô tả khoa học đầu tiên năm 1894.

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Хмелеграб Нольтона ( Russian )

provided by wikipedia русскую Википедию
Царство: Растения
Подцарство: Зелёные растения
Отдел: Цветковые
Надпорядок: Rosanae
Порядок: Букоцветные
Семейство: Берёзовые
Подсемейство: Лещиновые
Вид: Хмелеграб Нольтона
Международное научное название

Ostrya knowltonii Sarg.

Охранный статус Wikispecies-logo.svg
Систематика
на Викивидах
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Изображения
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ITIS 19510NCBI 176867EOL 1153527IPNI 295668-1TPL kew-144626

Хмелеграб Нольтона (лат. Ostrya knowltonii) — вид деревьев рода Хмелеграб (Ostrya) семейства Берёзовые (Betulaceae).

В Северной Америке и в Англии в культуре с 1914—1916 годов.

Распространение и экология

В природе ареал вида охватывает Северную Америку.

Произрастает в горных лесах на высоте 1500—2000 м над уровнем омря.

Ботаническое описание

Дерево высотой до 10 м, со стволом диаметром 30—40 см. На высоте 50 см от земли ствол, обычно, разветвляется на 3—4 прямостоячие крупные ветви. Ветви тонкие, висячие, часто искривлённые, образуют узкую закруглённую симметричную крону. Однолетние побеги опушённые, зеленовато-коричневатые; двулетние — голые, серые. Кора на внутренней стороне ярко-оранжевая, отслаивающаяся пластинками.

Почки яйцевидные, опушённые, тёмно-красно-бурые. Листья яйцевидные до овальных, длиной 2,5—5 см, острые или наверху закруглённые, с округлым или слегка сердцевидным основанием, остропильчатые, сверху тёмно-жёлто-зелёные и волосистые, снизу светлее и мягко опушённые.

Тычиночные серёжки длиной до 3 см, на толстых ножках, покрытых рыжеватым опушением; чешуйки постепенно суживающиеся в тонкое шиловидное острие, тёмно-бурые, опушённые. Пестичные серёжки длиной 3 см, с яйцевидно-ланцетными, светло-жёлто-зелёными опушёнными чешуйками, ресничатыми по краю.

Орешек продолговатый, длиной 6 мм, волосистый на верхушке.

Древесина светло-красновато-бурая с тонкой заболонью.

Таксономия

Вид Хмелеграб Нольтона входит в род Хмелеграб (Ostrya) подсемейства Лещиновые (Coryloideae) семейства Берёзовые (Betulaceae) порядка Букоцветные (Fagales).


ещё 7 семейств
(согласно Системе APG II) ещё 3 рода порядок Букоцветные подсемейство Лещиновые вид
Хмелеграб Нольтона
отдел Цветковые, или Покрытосеменные семейство Берёзовые род
Хмелеграб ещё 44 порядка цветковых растений
(согласно Системе APG II) ещё одно подсемейство, Берёзовые
(согласно Системе APG II) ещё 8 видов

Примечания

  1. Об условности указания класса двудольных в качестве вышестоящего таксона для описываемой в данной статье группы растений см. раздел «Системы APG» статьи «Двудольные».
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Хмелеграб Нольтона: Brief Summary ( Russian )

provided by wikipedia русскую Википедию

Хмелеграб Нольтона (лат. Ostrya knowltonii) — вид деревьев рода Хмелеграб (Ostrya) семейства Берёзовые (Betulaceae).

В Северной Америке и в Англии в культуре с 1914—1916 годов.

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