Wingnut (plant)

Wingnut (plant)

Taxobox
name = Wingnut


image_width = 240px
image_caption = Japanese Wingnut ("Pterocarya rhoifolia")
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Fagales
familia = Juglandaceae
genus = "Pterocarya"
genus_authority = Nutt. ex Moq.
subdivision_ranks = Species
subdivision = See text

The wingnuts are plants in the genus "Pterocarya" (from Ancient Greek "pteron", "wing" + "karyon", "nut") in the walnut family Juglandaceae, native to Asia.

Description

They are deciduous trees, 10-40m tall, with pinnate leaves 20-45cm long, with 11-25 leaflets; the shoots have chambered pith, a character shared with the walnuts ("Juglans") but not the hickories ("Carya") in the same family.

The flowers are monoecious, in catkins. The seed catkins when mature (about 6 months after pollination) are pendulous, 15-45 cm long, with 20-80 seeds strung along them.

The seeds are a small nut 5-10 mm across, with two wings, one each side. In some of the species, the wings are short (5-10 mm) and broad (5-10 mm), in others longer (10-25 mm) and narrower (2-5 mm).

pecies

There are six species of wingnut.
*"Pterocarya fraxinifolia" - Caucasian Wingnut. Caucasus and Elburz mountains in southwest Asia.
*"Pterocarya hupehensis" - Hubei Wingnut. Central China.
*"Pterocarya macroptera" - Large-winged Wingnut. West and southwest China.
*"Pterocarya rhoifolia" - Japanese Wingnut. Japan, eastern China (Shandong).
*"Pterocarya stenoptera" - Chinese Wingnut. China, widespread.
*"Pterocarya tonkinensis" - Tonkin Wingnut. Southernmost China (Yunnan), Indo-China.

Another species from China, the Wheel Wingnut with similar foliage but an unusual circular wing right round the nut (instead of two wings at the sides), previously listed as "Pterocarya paliurus", has now been transferred to a new genus, as "Cyclocarya paliurus".

Uses

Wingnuts are very attractive, large and fast-growing trees, occasionally planted in parks and large gardens. The commonest in general cultivation outside of Asia is "P. fraxinifolia", but the most attractive is probably "P. rhoifolia". The hybrid "P. x rehderiana", a cross between "P. fraxinifolia" and "P. stenoptera", is even faster-growing and has occasionally been planted for timber production. The wood is of good quality, similar to walnut, though not quite so dense and strong.

External links

* [http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=127445 Flora of China - "Pterocarya"]
* [http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=108834 Flora of China - "Cyclocarya"]


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Wingnut — may refer to:*A wingnut or wing nut, a nut (hardware), with a pair of wings to enable it to be turned without tools *Wingnut (plant) ( Pterocarya ), a genus of trees bearing winged nuts *Wingnut (politics), a derogatory American slang term for a… …   Wikipedia

  • Teenage Mutant Ninja Turtles (Archie Comics) — Supercbbox title = Teenage Mutant Ninja Turtles Adventures comic color = background:#ff8080 caption = First issue schedule = Monthly format = Ongoing series publisher = Archie Comics date = August 1988 October 1995 issues = 72 past current color …   Wikipedia

  • Teenage Mutant Ninja Turtles Adventures — First issue Publication information Publisher Archie Co …   Wikipedia

  • Fraggle Rock — For the animated television series, see Fraggle Rock (animated TV series). Fraggle Rock Also known as Jim Henson s Fraggle Rock Created by Jim Henson …   Wikipedia

  • List of garden plants — This is a partial list of garden plants, plants that can be cultivated in the garden, listed alphabetically by genus.See also: * List of plants by common name NOTOC A * Abelia * Abeliophyllum (white forsythia) * Abelmoschus (okra) * Abies (fir) * …   Wikipedia

  • October 2010 — was the tenth month of that year. It began on a Friday and concluded after 31 days on a Sunday. Portal:Current events This is an archived version of Wikipedia s Current events Portal from October 2010 …   Wikipedia

  • Juglandaceae — Taxobox name = Juglandaceae image width = 240px image caption = Juglans regia regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Fagales familia = Juglandaceae familia authority = A. Richard ex Kunth subdivision ranks =… …   Wikipedia

  • List of Teenage Mutant Ninja Turtles (1987) episodes — The following is an episode list for the animated television series Teenage Mutant Ninja Turtles which premiered in 1987. In total 193 episodes aired between 1987 and 1996. The first three seasons were aired in syndication. CBS aired the rest of… …   Wikipedia

  • List of Beetleborgs monsters — This is a list of Beetleborgs monsters featured in both versions of the show.Big Bad BeetleborgsHere is a list of monsters brought out of the comics by the Magnavores: Gargolem * First Appearance: Beetle Rock, Part 1 (9/7/96) * Voice Actor: Lex… …   Wikipedia

  • Deluxe Entertainment Services Group Inc. — Deluxe Entertainment Services Group Inc. Industry entertainment Founded 1915 Founder(s) William Fox …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”