Calligonum

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Calligonum is a genus of plants in the family Polygonaceae with about 41 species native to Northern Africa, Western, South, and Central Asia, and central China.[1]

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.[2][3]

Taxonomy

The genus Calligonum was first published by Carl Linnaeus in 1753.[4] It is placed in the subfamily Polygonoideae, tribe Calligoneae, along with its sister genus, Pteropyrum.[5]

Species

41 species are accepted.[1]

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References

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  1. ^ a b c Page Module:Citation/CS1/styles.css has no content."Calligonum L." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 26 October 2025.
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  5. ^ Page Module:Citation/CS1/styles.css has no content.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, Bibcode:2015Taxon..64.1188S, doi:10.12705/646.5

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