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Calligonum paletzkianum

Overview

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Vulnerable
Threat status

Description

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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 Calligonum

Shrubs or subshrubs , much branched; woody branches without spines; herbaceous branchlets of current year with leaves and flowers. Leaves simple , opposite, nearly sessile, linear or scale-like, united with ocrea at base or free ; ocrea membranous. Inflorescence axillary . Pedicel slender, jointed . Flowers bisexual . Perianth persistent , 5-parted, not accrescent in fruit. Stamens 12-18; filaments connate at base. Ovary tetragonous. Styles 4, short; stigmas capitate. Achenes trigonous , ellipsoid or oblong-ovoid, woody; ribs with wings or bristles , rarely overgrowing a thin bladderlike membrane on surface of reduced wings or bristles.

About 35 species: N Africa, Asia, S Europe; 23 species (eight endemic) in China.[2]

Habitat

Ecology: Restricted to a narrow ecological niche .

Taxonomy

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Similar Species

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Members of the genus Calligonum

ZipcodeZoo has pages for 121 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

C. acanthopterum · C. aculeatum · C. aequilaterale · C. affine · C. alaschanicum · C. alatiforme · C. alatum · C. amoenum · C. androssowi · C. anfractuosum · C. aphyllum · C. arabicum · C. aralense · C. arborescens · C. arich · C. asperum · C. azel · C. babakianum · C. bakuense · C. batiola · C. borsczowi · C. bubyri · C. bungei · C. bykovii · C. calcareum · C. calliphysa · C. calvescens · C. cancellatum · C. canescens (Four-Winged Saltbush) · C. caput-medusae · C. caput-medusae rubicundum · C. cartilagineum · C. chinense · C. colubrinum · C. commune · C. comosum · C. conuivena · C. cordatum · C. cordiforme · C. coriaceum · C. crinitum · C. crispatum · C. crispum · C. cristatum · C. densiforme · C. densum · C. denticulatum · C. dielsianum · C. dissectum · C. drobovii · C. dubianskyi · C. durum · C. ebi-nuricum · C. elatum · C. elegans · C. erinaceum · C. eriopodum · C. falcilobum · C. flavidum · C. fragile · C. gobicum · C. golbeckii · C. gracile · C. griseum · C. gypsaceum · C. horridum · C. humile · C. integrum · C. intertextum · C. involutum · C. irtyschense · C. jeminaicum · C. josephii · C. junceum · C. juochiangense · C. klementzii · C. korlaense · C. koslovi · C. kurotschkinae · C. kzyl-kumi · C. lamellatum · C. lanciculatum · C. laristanicum · C. leucocladum · C. lipskyi · C. litwinowi · C. litwinowii · C. matteianum · C. membranaceum · C. microcarpum · C. minimum · C. molle · C. mongolicum · C. murex · C. paletzkianum · C. pallasia · C. pallasii · C. persicum · C. polygonoides · C. potanini

More Info

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Further Reading

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Notes

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Contributors

Identifiers

Footnotes

  1. 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]
  2. Bao Bojian, Alisa E. Grabovskaya-Borodina "Calligonum". in Flora of China Vol. 5 Page 324. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
Last Revised: 2009-07-04