Interesting Facts
Description
Family Polygonaceae
Herbs, shrubs
, or small trees
, sometimes monoecious or dioecious. Stems erect
, prostrate
, twining
, or scandent
, often with swollen nodes, striate
, grooved
, or prickly. Leaves simple
, alternate, rarely opposite or whorled
, petiolate
or subsessile
; stipules often united
to a sheath
(ocrea) . Inflorescence terminal
or axillary
, spicate
, racemose, paniculate
, or capitate. Pedicel occasionally articulate
. Flowers small, actinomorphic
, bisexual
, rarely unisexual
. Perianth 3-6-merous, in 1 or 2 series, herbaceous, often enlarged in fruit or inner tepals enlarged, with wings
, tubercles
, or spines. Stamens usually (3-) 6-9, rarely more; filaments
free
or united at base
; anthers
2-loculed, opening lengthwise; disk annular
(often lobed
) . Ovary superior, 1-loculed; styles 2 or 3, rarely 4, free or connate
at lower part. Fruit a trigonous
, biconvex
, or biconcave
achene; seed with straight or curved
embryo and copious
endosperm.
About 50 genera and 1120 species: worldwide, but primarily N temperate
with a few species in tropical regions
; 13 genera (two endemic) and 238 species (65 endemic) in China.[1]
Genus Atraphaxis
Shrubs
much branched; woody branches with spines or not, herbaceous branchlets
of current
year with leaves and flowers. Leaves simple
, alternate, rarely fascicled, nearly sessile; ocrea membranous, usually with 2 veins, 2-parted at apex. Inflorescence racemose, terminal
, or lateral
, with dense or sparse axillary
flowers. Pedicel slender, jointed
. Flowers hermaphroditic
. Perianth persistent
, 4- or 5-parted, inflated
in fruit. Stamens 6 or 8; filaments
dilated
at base
and united
into a glandular
ring
. Ovary lenticularly compressed
or trigonous
; styles 2 or 3, short; stigmas capitate. Achenes lenticular
or trigonous.
About 25 species: N Africa, C, N, and SW Asia, S Europe; 12 species (two endemic) in China.[2]
Habitat
Biome: Terrestrial [3].
Ecology:
List of Habitats
:
- 8 Desert
- 8.2 Desert - Temperate [more info]
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
()
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
()
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
()
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
()
- Infraphylum:
Radiatopses
()
- Kenrick & Crane, 1997
- Class:
Magnoliopsida
()
- Brongniart, 1843
- Dicotyledons
- Subclass:
Caryophyllidae
()
- Takhtajan, 1967
- Superorder:
Polygonanae
()
- Takhtajan Ex Reveal, 1992
- Order:
Polygonales
()
- Perleb, 1826
- Family:
Polygonaceae
()
- A.L. de Jussieu, 1789, nom. cons.
- knotweed, renouées
- Subfamily:
Polygonoideae
()
- Tribe:
Polygoneae
()
- Genus:
Atraphaxis
()
- C. Linnaeus, 1753
- Specific epithet:
teretifolia
- (Popov) Komarov
- Botanical name: - Atraphaxis teretifolia (Popov) Komarov
- Specific epithet:
teretifolia
- (Popov) Komarov
- Genus:
Atraphaxis
(
- Tribe:
Polygoneae
(
- Subfamily:
Polygonoideae
(
- Family:
Polygonaceae
(
- Order:
Polygonales
(
- Superorder:
Polygonanae
(
- Subclass:
Caryophyllidae
(
- Class:
Magnoliopsida
(
- Infraphylum:
Radiatopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Notes
Publishing author
: Komarov Publication
: Fl.
URSS v. 526 (1936)
Basionym
author: (Popov)
Similar Species
Members of the genus Atraphaxis
ZipcodeZoo has pages for 1 species, subspecies, varieties, forms, and cultivars in this genus:
A. muschketowi (Shrubby Buckwheat)
More Info
- Search for Pictures: images.google.com
- Search for Scholarly Articles: Google Scholar
- Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
- Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books
Further Reading
- 1997 IUCN red list of threatened plants Cambridge: IUCN, World Conservation Union, 1998 url p. 461.
- World Plant Conservation Bibliography WCMC, Royal Botanic Gardens url p. 633.
- Li Anjen, Kao Tsoching, Mao Zumei & Liu Yulan. 1998. Polygonaceae. In: Li Anjen, ed., Fl. Reipubl. Popularis Sin. 25(1): 1209.
- Li Anjen, Kao Tsoching, Mao Zumei & Liu Yulan. 1998. Polygonaceae. In: Li Anjen, ed., Fl. Reipubl. Popularis Sin. 25(1): 1209.
Notes
Contributors
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 16, 2012.
- IUCN 2012. IUCN Red List of Threatened Species. Version 2011.2. . Downloaded on January 28, 2012.
- Participants of the FFI/IUCN SSC Central Asian regional tree Red Listing workshop, Bishkek, Kyrgyzstan (11-13 July 2006) 2007. Atraphaxis teretifolia. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloadedon 30January2012.
Identifiers
- Biodiversity Heritage Library NamebankID: 9275773
- Global Biodiversity Information Facility Taxonkey: 15785007
- Globally Unique Identifier: urn:lsid:ipni.org:names:693145-1
- International Plant Names Index (IPNI) ID: 693145-1
- IUCN ID: 193482
- Zipcode Zoo Species Identifier: 3652165
Footnotes
- Anjen Li, Bojian Bao, Alisa E. Grabovskaya-Borodina, Suk-pyo Hong, John McNeill, Sergei L. Mosyakin, Hideaki Ohba & Chong-wook Park "Polygonaceae". in Flora of China Vol. 5 Page 277. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
- Bao Bojian, Alisa E. Grabovskaya-Borodina "Atraphaxis". in Flora of China Vol. 5 Page 328. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
- Participants of the FFI/IUCN SSC Central Asian regional tree Red Listing workshop, Bishkek, Kyrgyzstan (11-13 July 2006) 2007. Atraphaxis teretifolia. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 30 January 2012. [back]
