banner small

Pontederiaceae

Eichhornia Kunth [Not native]

Last edited by Pieter B. Pelser, 20 Septembet 2017

Photos
  1. Eichhornia crassipes (Mart.) Solms in A.DC. & C.DC., Monog. Phan. 4 (1883) 523; --Merr., EPFP 1 (1922) 200; --Backer, Fl. Males. ser. 1, 4 (1951) 255; --Pontederia crassipes Mart., Nov. Gen. Sp. Pl. 1 (1824) 9. Native to N South America. Introduced in the tropics and subtropics worldwide. In the Philippines since around 1912 as an ornamental, now an ubiquitous weed clogging water courses all over the country. Water hyacinth. Invasive species (CABI 2017). Photos

Monochoria C.Presl

Last edited by Pieter B. Pelser, 20 September 2017

Photos
  1. Monochoria hastata (L.) Solms in A.DC. & C.DC., Monog. Phan. 4 (1883) 523; --Merr., Fl. Manila (1912) 141; EPFP 1 (1922) 200; --Backer, Fl. Males. ser. 1, 4 (1951) 258; --Pontederia hastata L., Sp. Pl. (1753) 288. Tropical SE Asia and throughout Malesia, not yet recorded from the Moluccas and Lesser Sunda Isls.
  2. Monochoria vaginalis (Burm.f.) C.Presl, Rel. Haenk. 1 (1827) 128; --Merr., Fl. Manila (1912) 141; EPFP 1 (1922) 200; --Backer, Fl. Males. ser. 1, 4 (1951) 256; --Pontederia vaginalis Burm.f., Fl. Indica (1768) 80. --Monochoria vaginalis var. pauciflora (Blume) Merr., EPFP 1 (1922) 201; --Pontederia pauciflora Blume, Enum. Pl. Javae 1 (1827) 32. SE Asia to China, Japan and throughout Malesia. Throughout the Philippines from the lowlands up to 2000m; common in periodically inundated or water-logged open waste sites, rice paddies, swamps, etc. Photos

Acknowledgements

Ron Boos kindly provided some of the photos on this web page.

Literature

Backer, CA. 1951. Pontederiaceae. Flora Malesiana series 1, 4: 255-261

CABI Invasive Species Compendium

Pelser, P.B., J.F. Barcelona & D.L. Nickrent (eds.). 2011 onwards. Co's Digital Flora of the Philippines. www.philippineplants.org

Copyright 2011, Co's Digital Flora of the Philippines

Last updated 15 November 2017