Compilation
Ludwigia leptocarpa

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Name

Identification
Jussiaea leptocarpa [family ONAGRACEAE ] Verified by Not on sheet., Ludwigia leptocarpa (Nutt.) H.Hara [family ONAGRACEAE ] (stored under name); Verified by Not on sheet.,
Related name
  • Jussiaea villosa
  • Jussiaea palustris
  • Jussiaea seminuda
  • Jussiaea velutina
  • Jussiaea aluligera
  • Ludwigia leptocarpa
  • Jussiaea pubescens
  • jussiaea pilosa
  • Jussiaea surinamensis
  • Jussieua erecta
  • Diplandra montana
  • Jussiaea affinis
  • Jussiaea pilosa
  • ludwigia leptocarpa
  • Jussiaea variabilis
  • Jussiaea foliosa
  • Jussiaea leptocarpa
  • Jussiaea elatior
  • Ludwigia seminuda
  • Jussiaea miquelii
Common name
  • rutn (JDES; EPdS) (GUINEA-BISSAU, BALANTA), Burkill, H.M. 1985. The useful plants of west tropical Africa, Vol. 4
  • ewúro-odò (Macgregor; IFE) (NIGERIA, YORUBA), Burkill, H.M. 1985. The useful plants of west tropical Africa, Vol. 4
  • ñanlibo (JB) (SENEGAL, DIOLA), Burkill, H.M. 1985. The useful plants of west tropical Africa, Vol. 4

Flora

Entry for Ludwigia leptocarpa Nutt. Hara [family ONAGRACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 4, Part 0, page 329, (1978) Author: P. H. Raven
Names
Jussiaea pilosa Kunth [family ONAGRACEAE], Nov. Gen. et Sp. 6: 101, t. 532 (1823).—R. E. Fr., Wiss. Ergebn. Schwed. Rhod.-Kongo-Exped. 1: 182 (1914).—Perrier in Fl. Madag., Oenotheracées: 17 (1950).—Mogg in Macnae & Kalk, Nat. Hist. Inhaca I.: 150 (1958).—Binns, H.C.L.M.: 70 (1968). Type from Colombia.
Jussiaea seminuda Perrier [family ONAGRACEAE], op. cit.: 18 (1950). Type from Madagascar.
Jussiaea leptocarpa Nutt. [family ONAGRACEAE], in Gen. N. Amer. Pl. 1: 279 (1818).—Brenan in F.T.E.A., Onagraceae: 16 (1953); in F.W.T.A. ed. 2, 1: 169 (1954). Type as above.
Ludwigia leptocarpa Nutt. Hara [family ONAGRACEAE], in Journ. Jap. Bot. 28: 292 (1953).—A. & R. Fernandes in Garcia de Orta 5: 116, 474 (1957); op. cit. 7: 490 (1959); in C.F.A. 4: 196 (1970). Type from the U.S.A.
Information
Robust hairy plants to 3 m. tall, often somewhat woody below, reclining at base but erect and well-branched, with erect floating pneumatophores arising from roots under water. Leaves 3·5–18 × 1–4 cm., long-hairy, broadly lanceolate, narrowly cuneate at base, the apex acuminate; main veins on each side of midrib 11–20; petiole 0·2–3·5 cm. long. Bracteoles at base of ovary absent or rarely present, narrowly deltate. Sepals 5, rarely 4, 6 or 7, 5·5–11 × 1·5–3 mm., deltate-acuminate, long-hairy, with a narrow wing running down from the sinus between adjacent sepals to the apical portion of the ovary. Petals 5–11 × 4–8 mm., obovate. Stamens twice as many as the sepals; filaments 2–4 mm. long, the epipetalous ones shorter; anthers 1·2–1·6 mm. long, extrorse and thus not shedding pollen directly on the stigma. Pollen shed in tetrads. Disk slightly elevated, the base of each epipetalous stamen surrounded by a depressed nectary densely covered with matted white hairs. Style 3–4·5 mm. long, glabrous; stigma 2–2·5 mm. across, c. 1 mm. high, globose, the upper 2/3 receptive. Capsule 15–50 × 2·5–4 mm., relatively thin-walled, long-hairy, terete, dull light brown, with prominent ribs over the locules and less prominent ones over the septa, marked on the outside with bumps c. 0·5 mm. apart, corresponding to the position of the seeds, slowly and irregularly loculicidal; pedicels 2–20 mm. long. Seeds 1–1·2 mm. long, uniseriate in each locule of the capsule, horizontal, shiny pale brown, finely pitted, obovoid; raphe much narrower than the body of the seed; each seed loosely embedded in an easily detached horseshoe-shaped segment of firm pale brown endocarp c. 1–1·5 mm. thick and c. 1 mm. high. Chromosome number n=24 (in African populations).
Habitat
Often abundant in marshes, along streams, rivers and lakes
Range
In Africa from Senegal and the vicinity of L. Chad to L. Tana, Ethiopia, and S. to the interior of Angola and Zululand, and Madagascar. In the New World from the south-eastern U.S.A. and the W. Indies to Peru and Argentina.
Altitude range
up to 1300 m.
1300
0
inferred only top
Distribution
Mozambique M Marracuene near Bobole, fl. 2.x.1957, Barbosa & Lemos 7920 (COI; K).Mozambique GI between Vila de João Belo and Chongoene, fr. 24.vii.1947, Barbosa 317 (COI).Malawi S Lower Shire Valley, Elephant Marsh, fl. ix.1956, Robertson 2 (K).Malawi C 3·2 km. S. of L. Nyasa Hotel, Salima Distr., fl. & fr. 9.viii.1951, Chase 3877 (K; SRGH).Zimbabwe S Zimbabwe, fr. 11.viii.1929, Rendle 267 (BM).Zambia S Lochinvar, Mazabuka, fl. 25.iv.1962, Mitchell 13199 (SRGH).Zambia E Chilongozi, Ft. Jameson Distr., fl. 11.x.1960, Richards 13327 (K; SRGH).Zambia C Lukanga, Kabwe Distr., fl. 19.viii.1958, Seagrief 3180 (SRGH).Zambia N Luaba lagoon, L. Bangweulu, fl. 3.ii.1959, Watmough 219 (SRGH).Mozambique MS on the mainland near Expedition L, fl. & fr. xii.1859, Kirk (K).Malawi N Vua, fl. 17.vii.1952, Williamson 39 (BM).Zimbabwe N Kariba Lake shore, Binga Distr., fl. 3.xii.1960, Boughey 7528 (SRGH).Zambia B Namushakende, Mongu Distr., fl. & fr. 21.viii.1961, Angus 3015 (K; SRGH).Botswana N Mokankanyane, Ngamiland, fl. & fr. xii.1930, Curson 754 (PRE).Caprivi Strip Katima Mulilo area, fr. 24.xii.1958, Killick & Leistner 3077 (M; PRE).

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