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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, 5 July 2017

Photos
  1. Ludwigia adscendens (L.) Hara, J. Jap. Bot. 28 (1953) 290; --Raven, Reinwardtia 6 (1963) 387, maps 31, 33; Fl. Males. ser. 1, 8 (1977) 104, Fig. 5; 6 (map);  --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. Sri Lanka, India, Bangladesh, S China, Hainan, Myanmar, Thailand, Indochina, across Malesia to Guinea, N Australia (W Arnhem Land). Freshwater pools, ditches, swamps, fallow and wet paddies, very common.
  2. Ludwigia hyssopifolia (G.Don) Exell, Garcia de Orta 5 (1957) 471; --Raven, Reinwardtia 6 (1963) 387, maps 30; Fl. Males. ser. 1, 8 (1977) 104, Fig. 4; --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. Tropical Africa, continental SE Asia (Sri Lanka to Hainan), throughout Malesia to Micronesia and N Australia (Cape York Peninsula and Arnhem Land). Pools, along rice paddies, canals and shallow ditches, river edges, waterlogged wastelands, etc. Lowlands. Native to the Philippines, but invasive outside of its native distribution range (CABI, 2017). Photos
  3. Ludwigia octovalvis (Jacq.) Raven, Kew Bull. 15 (1962) 476; Reinwardtia 6 (1963) 356, maps 19-  20, incl. ssp. brevisepala (Brenan) Raven & ssp. sessiliflora (Mich.) Raven; Fl. Males. ser. 1, 8   (1977) 101, Fig. 1; --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
  4. Ludwigia perennis L., Sp. Pl. (1753) 119; --Raven, Fl. Males. ser. 1, 8 (1977) 103, Fig. 2 (map); --Raven, Reinwardtia 6 (1963) 367, map 21. --Ludwigia parviflora Roxb., Hort. Beng. (1814) 11, nom. nud.; Fl. Ind. 1 (1820) 440; --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.
  5. Ludwigia prostrata Roxb., Hort. Beng. (1814) 11, nom. nud.; Fl. Ind. 1 (1820) 441; --Merr., Fl. Manila (1912) 355; EPFP 3 (1923) 220; --Raven, Reinwardtia 6 (1963) 374, map 23; Fl. Males. ser. 1, 8 (1977) 103, Fig. 3 (map). Sri Lanka and S Deccan to N India, Assam, Andaman Isls, S China, Peninsular Malaysia, Java, Lesser Sunda Isls (Timor), Borneo, and the Philippines. LUZON, PALAWAN, NEGROS, MINDANAO. Lowlands to c. 800m, along rice paddies, ditches, river banks, swampy sites, rather rare.
          Not native:
  1. Ludwigia alternifolia L., Sp. Pl. 1 (1753) 118. Native to North America. BATAAN. Naturalized? Photos

Cultivated

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

Literature

CABI Invasive Species Compendium

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

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

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


Copyright 2011, Co's Digital Flora of the Philippines

Last updated 16 August 2017