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Onagraceae

Epilobium L.

Photos
  1. Epilobium brevifolium D.Don, Prodr. Fl. Nepal. (1825) 222.
  2. Epilobium platystigmatosum C.B.Rob., PJS 3 c (1908) Bot. 210; --Merr., EPFP 3 (1923) 221; --Raven, Blumea 15 (1967) 272; Fl. Males. ser. 1, 8 (1977) 110; --Type: Merrill 4744. Japan, China (Hubei, Jiangsu), Taiwan, N Philippines. LUZON: Ifugao, Mountain Province, Benguet. Chiefly along small streams and about cliffs, 1200-2400m. Fl. Apr-Jun.

Jussiaea L. = Ludwigia

Ludwigia L.

Last edited by Pieter B. Pelser, 2 June 2021

Photos
  1. Ludwigia adscendens (L.) Hara, J. Jap. Bot. 28 (1953) 290; --Raven, Reinwardtia 6 (1963) 387; Fl. Males. ser. 1, 8 (1977) 104; --Jussiaea adscendens L., Mantissa 1 (1767) 69. --Jussiaea repens L., Sp. Pl. (1753) 388; --Merr., EPFP 3 (1923) 219; --Backer & Bakh.f., Fl. Java 1 (1963) 260. Australia, Sri Lanka, India, Bangladesh, China, Myanmar, Thailand, Indochina, across Malesia to Guinea, Philippines. LUZON: Laguna (photos). Freshwater pools, ditches, swamps, fallow and wet paddies, very common. Photos
  2. Ludwigia decurrens Walter, Fl. Carol. (1788) 89. Native to Americas. Not native to the Philippines. Photos
  3. Ludwigia hyssopifolia (G.Don) Exell, Garcia de Orta 5 (1957) 471; --Raven, Reinwardtia 6 (1963) 387; Fl. Males. ser. 1, 8 (1977) 104; --Jussiaea hyssopifolia G.Don, Gen. Syst. 2 (1832) 693. --Jussiaea linifolia Vahl, Eclog. Am. 2 (1798) 32; --Merr., Fl. Manila (1912) 356; EPFP 3 (1923) 219; --Backer & Bakh.f., Fl. Java 1 (1963) 260. Circumtropical. Cryptogenic. Sometimes considered native to the Philippines, but invasive outside of its native distribution range (CABI, 2017). Pools, along rice paddies, canals and shallow ditches, river edges, waterlogged wastelands, etc. Lowlands. Photos
  4. Ludwigia octovalvis (Jacq.) Raven, Kew Bull. 15 (1962) 476; Reinwardtia 6 (1963) 356; Fl. Males. ser. 1, 8 (1977) 101; --Jussiaea octovalvis (Jacq.) Sw., Obs. Bot. (1791) 142; --Oenothera octovalvis Jacq., En. Syst. Pl. (1760) 19. --Ludwigia villosa Lam., Encycl. 3 (1789) 331; --Merr., EPFP 3 (1923) 220. --Jussiaea erecta L., Sp. Pl. (1753) 388; --Merr., EPFP 3 (1923) 219. --Jussiaea suffruticosa Miq., Fl. Ind. Bat. 11 (1856) 628; --Merr., Fl. Manila (1912) 357. Pantropic, between c. 32N and 30S. Waterlogged sites, pools, rice fields, along water-courses, lake shores, also gravelly riverbeds, etc. Photos
  5. Ludwigia perennis L., Sp. Pl. (1753) 119; --Raven, Fl. Males. ser. 1, 8 (1977) 103; --Raven, Reinwardtia 6 (1963) 367. --Ludwigia parviflora Roxb., Fl. Ind. 1 (1820) 440; Hort. Beng. (1814) 11, nom. nud.; --Merr., Fl. Manila (1912) 355; EPFP 3 (1923) 220. Tropical Africa, Madagascar, Sri Lanka to S China, Hong Kong, and Hainan, throughout Malesia (except Borneo and Moluccas) to tropical Australia and New Caledonia. Sunny waterlogged conditions, along fallow rice-fields, watercourses, riverbeds, on heavy clay, etc. from lowlands to c. 500m. Fl. throughout the year.
  6. Ludwigia prostrata Roxb., Fl. Ind. 1 (1820) 441; Hort. Beng. (1814) 11, nom. nud.; --Merr., Fl. Manila (1912) 355; EPFP 3 (1923) 220; --Raven, Reinwardtia 6 (1963) 374; Fl. Males. ser. 1, 8 (1977) 103. Sri Lanka and S Deccan to N India, Assam, Andaman Isls, S China, Peninsular Malaysia, Java, Lesser Sunda Isls (Timor), Borneo, Philippines. LUZON, PALAWAN, NEGROS, MINDANAO. Lowlands to c. 800m, along rice paddies, ditches, river banks, swampy sites, rather rare.

Cultivated, not naturalized:

  1. Fuchsia magallenica Lam., Encycl. 2 (1788) 564; --Backer & Bakh.f., Fl. Java 1 (1963) 264. Native of temperate South America. Not naturalized. Photos

Acknowledgements

Wally Suarez kindly provided a photo for this webpage.

Literature

CABI Invasive Species Compendium

Raven, PH. 1963. Ludwigia. Reinwardtia 6: 327-427.

Raven, PH. 1967. The genus Epilobium in Malesia (Onagraceae). Blumea 15: 269-282

Raven, PH. 1977. Onagraceae. Flora Malesiana series 1, 8: 98-113


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 2 July 2021