Calligonum
Calligonum is a genus of plants in the family Polygonaceae with about 80 species across the Mediterranean Sea region, Asia and North America.
| Calligonum | |
|---|---|
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| Calligonum polygonoides | |
| Scientific classification  | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Order: | Caryophyllales | 
| Family: | Polygonaceae | 
| Subfamily: | Polygonoideae | 
| Genus: | Calligonum L.  | 
| Species | |
| 
 See text  | |
Description
    
Plants of the genus Calligonum are shrubs, diffusely but irregularly branched, with flexuous woody branches. Leaves are simple, opposite, nearly sessile, linear or scale-like, sometimes absent or very small, linear or filiform, distinct or united with short membranous ochreae. Flowers are bisexual, solitary or in loose axillary inflorescences. Flowers have persistent, 5-parted perianths not accrescent in fruit, and 10-18 stamens with filaments connate at the base. The ovary is tetragonous.[1][2]
Taxonomy
    
The genus Calligonum was first published by Carl Linnaeus in 1753.[3] It is placed in the subfamily Polygonoideae, tribe Calligoneae, along with its sister genus, Pteropyrum.[4]
Species
    
- Calligonum acanthopterum I.G.Borshch.
 - Calligonum alatosetosum Maassoumi & Kazempour
 - Calligonum aphyllum (Pall.) Gürke
 - Calligonum arborescens Litv.
 - Calligonum azel Maire
 - Calligonum babakianum Godw.
 - Calligonum bakuense Litv.
 - Calligonum bucocladum Bunge
 - Calligonum bykovii Godw.
 - Calligonum calvescens Maire
 - Calligonum caput-medusae Schrenk
 - Calligonum crinitum Boiss.
 - Calligonum crispum Bunge
 - Calligonum cristatum Bunge
 - Calligonum ebinuricum N.A.Ivanova ex Soskov
 - Calligonum eriopodum Bunge
 - Calligonum junceum (Fisch. & C.A.Mey.) Litv.
 - Calligonum klementzii Losinsk.
 - Calligonum laristanicum Rech.f. & Schiman-Czeika
 - Calligonum leucocladum (Schrenk) Bunge
 - Calligonum litwinowii Drobow
 - Calligonum macrocarpum I.G.Borshch.
 - Calligonum matteianum Drobow
 - Calligonum mejidum Al-Khayat
 - Calligonum microcarpum I.G.Borshch.
 - Calligonum mongolicum Turcz.
 - Calligonum murex Bunge
 - Calligonum polygonoides L.
 - Calligonum rubicundum Bunge
 - Calligonum santoanum Korovin
 - Calligonum schizopterum Rech.f. & Schiman-Czeika
 - Calligonum setosum (Litv.) Litv.
 - Calligonum spinosetosum Maassoumi & Batooli
 - Calligonum taklimakanense B.R.Pan & K.M.Shen
 - Calligonum tetrapterum Jaub. & Spach
 - Calligonum trifarium Z.M.Mao
 - Calligonum triste Litv.
 - Calligonum turbineum Pavlov
 
References
    
- "Flora of Pakistan". Efloras.org. Retrieved 2013-11-23.
 - "Flora of China". Efloras.org. Retrieved 2013-11-23.
 - "Plant Name Details for Calligonum L." The International Plant Names Index. Retrieved 2019-03-08.
 - Schuster, Tanja M.; Reveal, James L.; Bayly, Michael J. & Kron, Kathleen A. (2015), "An updated molecular phylogeny of Polygonoideae (Polygonaceae): Relationships of Oxygonum, Pteroxygonum, and Rumex, and a new circumscription of Koenigia", Taxon, 64 (6): 1188–1208, doi:10.12705/646.5
 
