Acacia planifrons

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Umbrella thorn
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Spermatophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Vachellia
Species:
V. planifrons
Binomial name
Vachellia planifrons
(Wight & Arn.) Ragup., Seigler, Ebinger & Maslin
Synonyms[1]
  • Acacia planifrons
  • Acacia roxburghii
  • Mimosa caesia
  • Mimosa eburnea
  • Mimosa planifrons
  • Mimosa umbrifera

The umbrella thorn,[2] (Vachellia planifrons), is a species of Vachellia of the family Fabaceae. It is native to India and Sri Lanka. It is about 7m high thorny shrub.[3] Greyish-brown bark is thick with horizontal markings. Leaves are bipinnate, alternate; apex obtuse; margin entire. Flowers are white in color. Fruit is a pod.[4]

Taxonomy

Vachellia planifrons was scientifically described in 1834 by Robert Wight and George Arnott Walker Arnott and named Acacia planifrons.[1] Prior to its first valid description Mimosa eburnea was described in 1805,[1] but this name had already been used in 1782.[5] In 2014 it was moved to Vachellia by Subramanyam Ragupathy, David Stanley Seigler, John Edwin Ebinger, and Bruce Maslin. It has no accepted subspecies and six synonyms.[1]

Table of Synonyms
Name Year Rank Notes
Acacia planifrons Wight & Arn. 1834 species ≡ hom.
Acacia roxburghii Wight & Arn. 1834 species = het.
Mimosa caesia Russell ex Wall. 1831 species = het., not validly publ.
Mimosa eburnea Roxb. 1805 species = het., sensu auct.
Mimosa planifrons K.D.Koenig ex Wight & Arn. 1834 species = het.
Mimosa umbrifera Banks ex Wight & Arn. 1834 species = het.
Notes: ≡ homotypic synonym; = heterotypic synonym

References

GROWTH RESPONSE OF ACACIA PLANIFRONS