Pontederiaceae

Pontederiaceae Kunth, Nov. Gen. Sp. 1(3): 265. 1816. 'Pickerel-Weed Family'

Characteristic Features:

Emergent to free floating aquatic herbs
Leaves simple, bifacial, with sheathing base
Flowers actinomorphic or zygomorphic, trimerous, ovary tricarpellary, superior
Perianth biseriate, homochlamydeous, pollen di (tri)-sulculate

Diversity:

World- 6 genera 33 species (ThePlant List 2013); 6 genera, 34 species (Christenhusz & Byng 2016); 9 genera, 35 species (Mabberely 2017); 6 genera, 34 species (Roskov et al. 2021)
India - 2 genera 3 species (Karthikeyan 2000); 1 genus, 7 species (BSI, 2021)
Indian Himalaya- 1 genus, 3 species (Singh et al. 2019)
Uttarakhand - 1 genus 3 species (Uniyal et al. 2007)

General Characters:

Pontederiaceae in Watson & Dallwitz (1992 onwards)
Pontederiaceae in Stevens (2001 onwards)
Pontederiaceae in POWO 2021 (Plants of the World Online)
Pontederiaceae in Wikipedia

Systematic position in 2-Superkingdom, 7-Kingdom classification of Ruggiero et al. (2015)

Super Kingdom- Eukaryota, Kingdom- Plantae, Subkingdom- Viridiplantae, Infrakingdom- Streptophyta, Superphylum- Embryophyta, Phylum- Tracheophyta, Subphylum- Spermatophytina, Superclass- Angiospermae, Class- Magnoliopsida, Superorder- Lilianae, Order- Commelinales

Bentham & Hooker (1862-83)

Division : Phanerogams
Class : Monocotyledons
Series : Coronarieae

Engler & Prantl (1887-1915)

Kingdom : Plantae
Division : Embryophyta Siphonogama
Subdivision: Angiospermae
Class : Monocotyledoneae
Order : Farinosae

Hutchinson (1973)

Phylum : Angiospermae
Subphylum : Monocotyledones
Division : Corolliferae
Order : Liliales

Cronquist (1988)

Division : Magnoliophyta
Class : Liliopsida
Subclass : Liliidae
Order : Liliales

Thorne & Reveal (2007)

Class : Magnoliopsida
Subclass : Commelinidae
Super Order: Commelinanae
Order : Commelinales

Takhtajan (2009)

Phylum : Magnoliophyta
Class : Liliopsida
Subclass : Commelinidae
Super Order: Commelinanae
Order : Commelinales

Reveal (2012)

Class : Equisetopsida
Subclass : Magnoliidae
Super Order: Lilianae
Order : Commelinales
Suborder : Pontederiineae

APG-IV (2016)

Clade : Angiosperms
Clade : Monocots
Clade : Commelinids
Clade : Commelinales

Shipunov (2020)

Class : Angiospermae
Subclass : Liliidae
Order : Zingiberales
Suborder : Commelinineae

Genera & Species in Pantnagar

To see larger image please click on the name

~Wild Flora~

Pontederia crassipes Mart.