Ludwigia erecta

(Linnaeus) H. Hara

J. Jap. Bot. 28: 292. 1953.

Common names: Yerba de jicotea
Basionym: Jussiaea erecta Linnaeus Sp. Pl. 1: 388. 1753
Synonyms: Isnardia discolor Klotzsch J. acuminata Swartz J. acuminata var. latifolia Grisebach J. acuminata var. longifolia Grisebach J. altissima Perrottet ex de Candolle J. declinata Sessé & Mociño J. erecta var. plumeriana de Candolle J. erecta var. sebana de Candolle J. onagra Miller J. plumeriana (de Candolle) Bello J. ramosa J. Jacquin ex Reichenbach Ludwigia acuminata (Swartz) M. Gómez
Treatment appears in FNA Volume 10.

Herbs annual, rarely persistent a second year from woody base. Stems erect, 4-angled, rarely 4-winged, sometimes basally terete, 40–280 cm, simple to densely branched, branches often ascending, glabrous. Leaves: stipules deltate, 0.2–0.3 × 0.15–0.2 mm; petiole 0.2–2.2 cm, somewhat flattened and continuous with ridges or wings on stem; blade elliptic to narrowly lanceolate, 2–20 × 0.2–4 cm, base cuneate, margins minutely scabrid, apex acute or acuminate, membranous, sur­faces glabrous or sometimes minutely strigillose along ab­axial veins; bracts often reduced. Inflorescences leafy spikes, flowers solitary in distal axils; bracteoles attached at base of ovary or on lower 1/2, without subtending glands, deltate, 0.3–0.5 × 0.2–0.3 mm, apex acute. Flowers: sepals ovate or lanceolate, 3–6 × 1–2 mm, apex acute or short-acuminate, surfaces usually glabrous, sometimes strigillose; petals obovate, 3.5–5 × 2–2.5 mm; stamens 8 in 2 subequal series, filaments 1.3–1.5 mm, anthers oblong, 0.6–1 × 0.4–0.5 mm; ovary obconic, 4-angled, 4–10 × 2–4 mm, usually glabrous, rarely strigillose; nectary disc plane on ovary apex, 3–4 mm diam., 4-lobed, glabrate; style 0.5–1.5 × 0.5–0.6 mm, stigma globose, 0.8–1 × 1–1.2 mm, not exserted beyond anthers and pollen shed directly on it. Capsules oblong-linear to squarish-cylindric, 4-angled, 10–22 × 2–4 mm, thin-walled, irregularly dehiscent, subsessile. Seeds elongate-ovoid, 0.3–0.5 × 0.2–0.3 mm, raphevery reduced and inconspicuous. 2n = 16.

Phenology: Flowering summer–early fall.
Habitat: Pond margins and depressions, wet sand ditches and prairies.
Elevation: 0–100[–300] m.


Ala., Ariz., Fla., Mexico (Campeche, Chiapas, Jalisco, Michoacán, Nayarit, Oaxaca, Tabasco), West Indies, Central America, South America, Africa (Nigeria, Tanzania), Indian Ocean Islands (Comoros Islands, Madagascar, Seychelles).


Ludwigia erecta, which is morphologically similar to L. decurrens and often growing with it, is modally self-pollinating and is usually easy to distinguish from that species.

Although Ludwigia erecta is widely distributed in warm temperate regions in the New World and Africa, it appears to be most closely related to species restricted to South America. Its appearance in a rather remote locality in Arizona in 2006 may be attributable to transport there in mud on migrating birds.

Selected References


Lower Taxa

... more about "Ludwigia erecta"
Peter C. Hoch +
(Linnaeus) H. Hara +
Jussiaea erecta +
Yerba de jicotea +
Ala. +, Ariz. +, Fla. +, Mexico (Campeche +, Chiapas +, Jalisco +, Michoacán +, Nayarit +, Oaxaca +, Tabasco) +, West Indies +, Central America +, South America +, Africa (Nigeria +, Tanzania) +, Indian Ocean Islands (Comoros Islands +, Madagascar +  and Seychelles). +
0–100[–300] m. +
Pond margins and depressions, wet sand ditches and prairies. +
Flowering summer–early fall. +
J. Jap. Bot. +
Isnardia discolor +, J. acuminata +, J. acuminata var. latifolia +, J. acuminata var. longifolia +, J. altissima +, J. declinata +, J. erecta var. plumeriana +, J. erecta var. sebana +, J. onagra +, J. plumeriana +, J. ramosa +  and Ludwigia acuminata +
Ludwigia erecta +
Ludwigia sect. Pterocaulon +
species +