What are the differences between Bacopa and Green Chrysanthemum?
Bacopa and Green Chrysanthemum are both common aquarium greening plants, cultivated in many places in China. So where do their differences lie?
1. Where do the differences between Bacopa and Green Chrysanthemum lie?
1. Morphology
Bacopa is a perennial amphibious herb, with slender stems; the submerged parts are hairless or nearly hairless; the aerial parts are 6-40 cm long, simple or somewhat branched, covered with multicellular short pubescence, rarely nearly hairless. The submerged leaves are 5-35 mm long, much divided; the lobes are slender and flat or hair-like, hairless; the aerial leaves are all whorled, elliptic-lanceolate, with rounded teeth or lobed, 5-18 mm long, 3-4 mm wide, hairless, densely covered with glandular dots, with 1-3 veins.
Green Chrysanthemum is a submerged herb, with stems up to 1.5 m long and internodes 2-7 cm long, hairless except for short pubescence on the young parts. The inner tepals are greenish-white, of the same shape as the outer tepals, with glands on both sides at the base; stamens 6, filaments about 2 mm long, anthers 1.5 mm long, hairless; carpels 3, free, pistil flask-shaped, 3.5 mm long, covered with fine pubescence, ovary 1-loculed, with 3 ovules. Fruit not seen.
2. Growing environment
Bacopa grows in ponds, swamps, paddy fields, or moist places beside roads and ditches. It prefers places with sufficient sunlight, likes warmth, and fears cold. It grows well within a temperature range of 22-28°C, and the overwintering temperature should not be lower than 10°C.
Green Chrysanthemum is suitable for a water temperature of 22-28°C, strong lighting, a pH value of 6.5-7.2, and a kh of 2.0-12.0°
3. Application
Bacopa has an extremely beautiful plant form and is often used as a submerged ornamental plant cultivated in park water features and as a mid-ground and background decorative plant in aquariums, with high ornamental value.
Green Chrysanthemum is only suitable for planting as a mid-ground and background aquatic plant.