Emex spinosa
Monogr. Rumex, 58. 1819.
Plants 3–6 (–8) dm. Stems ascending to erect, base often reddish, branched proximally. Leaves: ocrea loose, glabrous; petiole 2–29 cm, glabrous; blade ovate to ovate-oblong or triangular, 3–13 × 1.1–12 cm, base mostly truncate to subcordate, apex obtuse to acute. Staminate flowers 1–8 per ocreate fascicle; tepals narrowly oblong to oblanceolate, 1.5–2 mm. Pistillate flowers 2–7 per ocreate fascicle; outer tepals ovate to oblong, 4–6 mm in fruit, inner tepals linear-lanceolate, 5–6 mm in fruit, apex acute. Fruiting perianths 5–6 × 5–6 mm, spines spreading to reflexed, 2–4 mm, base broad. Achenes 4–5 × 2–3 mm, shiny. 2n = 20.
Phenology: Flowering year-round.
Habitat: Sandy shores, disturbed ground
Elevation: 0-500 m
Distribution
Introduced; Calif., Fla., Mass., N.J., Tex., South America (Argentina), South America (Ecuador), South America (Peru), Eurasia (Mediterranean region), n Africa (Mediterranean region), in Eurasia (Cyprus), in Eurasia (India), in Eurasia (Iran), in Eurasia (Iraq), in Eurasia (Israel), in Eurasia (Lebanon), in Eurasia (Pakistan), in Eurasia (Syria), in Eurasia (Turkey), Africa (Algeria), Africa (Kenya), Africa (Kuwait), Africa (Mauritius), Africa (Morocco), Atlantic Islands (Canary Islands), Pacific Islands (Hawaii), Australia
Discussion
Selected References
None.
Lower Taxa
"/2" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.