Caesalpinaceae

Taxonomic position of Caesalpinaceae family

Kingdom         : Plantae
Division           : Magnoliophyta
Class                :Magnoliopsida

Subclass          : Rosidae

Order               : Fabales
Family             : Caesalpinaceae

 

Identifying characters

  • Mostly shrub and tree
  • Pulvinous leaves
  • Pinnately compound leaf
  • Racemose or corymb inflorescence
  • Placentation marginal

General Morphological Characteristics

Habit : Mostly shrub or tree

Root: Tap root system

Stem: Round or climbing

Leaves: Compound, stipulate, pinnately or bipinnately compound. Leaf base is

 Important plants with economic importance

English name Bangla name Botanical name Economic Importance
Krishnachura Delnix regia Ornamental
Rhadhachura Caesalpinia pulcherrima Ornamental
Ashok Saraca asoka Medicine
Hematoxylin Haematoxylon campechianum Dye
Kalkasunda Cassia sophera
Badarlathi Cassia fistula
Temarinds Tetul Temarindus indica Fruit, timber
Kalkusnda Cassia sophera
Bador lathi Cassia fistula
Sada kanchon Bauhinia vaiegata
Natai Caesalpinia crisia
Dadmarjun Cassia alata
Bakam Caesalpinia sappan
Anjan Hardwickia binata
Kanchon Bauhnia purpurea

 

Differences between Caesalpinaceae, Mimosaceae and Fabacaeae

Serial Number Characters Caesalpinaceae Mimosaceae Fabacaeae

 

1 Habit Generally shrub and tree Generally tree Generally herb
2 Leaves Uni/bi- pinnate Bipinnate, stipules present or absent Usually unipinnate, trifoliate
3 Inflorescence Raceme Head Raceme
4 Flower zygomorphic actinomorphic Papilionaceous
5 Calyx Polysepalous, sometimes gamosepalous, usually imbricate Gamosepalous, usually valvate Gamosepalous, imbricate
6 Corolla Polypetalous, aestivation imbricate Gamopetalous, aestivation valvate Polypetalous, aestivation vexillary
7 Androecium Stamen 10 or fewer Often many or 10 Stamen 10 (9+1) diadelphous
8 Floral formula
9 Floral diagram

 

10 Example Caesalpinia pulcherrima, Delonis regia Acacia nilotica, Albizzia lebbek Arachis hypogeal, Lens culinaris