Common name : Redstem, eared
Common name in Hindi : Dadmari
Bangla English Hindi Urdu
Diagnostic characters
Biology
Ecology and distribution
Nuisance
Weed control
Botany
Uses/Remark
References
Flowers from January to March and fruits from February to June.
Ammannia octandra was reported from Indian peninsula, Sri Lanka, Chittagong in Bangladesh and Malaysia.
This species is found in plains, especially towards the coast, in low-lying moist areas, fallow fields and as a weed in paddy fields.
Habit
Robust herbs up to 50cm high.
Leaves
Oblong-lanceolate, 4.5cm long and 0.7cm wide, chartaceous, glabrous, base auriculate-subcordate, margin entire, apex acuminate.
Inflorescence
Cymes simple, axillary; pedicel to 1mm. Flowers 7mm across, calyx-tube 4mm, angular, margins sharp; lobes 4, 1mm. 4 petals, flame-coloured, with a darker midnerve, orbicular, 4mm, fugacious, crumpled. Stamens 4+4, inserted at different levels on calyx-tube; filaments to 6mm. Ovary 1.5mm, 4-celled; style 5mm.
Fruit
Capsule 4.5mm, equalling the thick clayx-tube.
Seeds
Turgid seeds.
- Matthew, K.M., 1983. The Flora of the Tamil Nadu Carnatic. The Rapinat Herbarium, Tiruchirapalli, India.
Top of the page