Bacopa caroliniana

Bacopa caroliniana
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Plantaginaceae
Genus: Bacopa
Species:
B. caroliniana
Binomial name
Bacopa caroliniana
(Walt.) B.L. Robins

Bacopa caroliniana is a flowering plant species.

Common names

Giant red bacopa; lemon bacopa; water hyssop

Synonyms

Bacopa amplexicaulis; Obolaria caroliniana; Herpestes amplexicaulis; Herpestes caroliniana

Distribution

It commonly grows in marshy areas in the southern United States and in South Korea.

Description

Bacopa caroliniana is a perennial creeping herb. The leaves of this plant are succulent, smell of lemon if crushed, and are relatively thick. Leaves are oblanceolate and are arranged oppositely on the stem. The flowers are blue, with five petals. It grows to 50–100 cm (20–39 in).

It will grow above the water if given the chance with similar but waxy leaves and will even flower underwater occasionally, though the flowers soon rot. Emerse flowers don’t set seed on their own, thus it requires cross pollination.

Cultivation

Its ability to grow in water makes it a popular aquarium plant. It can even grow in slightly brackish conditions. Propagation is through cuttings. It grows easily in the aquarium. The color of the leaves will vary, depending on the amount of light. The leaves will turn bronze or even almost red under high light levels.

In the wild it grows in bog or semi-submersed conditions, adapting well if flooded and fully submerged. It can be grown in or by the pond in warmer locales (or in shallow dishes or as a house plant if kept sufficiently damp) and will grow all year round, but is frost tender (though it will normally grow back from the roots if damaged) and appreciates a light shade.

In the aquarium it needs good lighting to grow strongly but will survive in even fairly low-light levels. Prefers a clean, nutriment rich environment.[1]

Bioluminescence

When gold nanoparticles were introduced into Bacopa caroliniana plants they caused the chlorophyll to produce reddish light.[2] While lit, the glowing plants' vegetation consumed more carbon from the atmosphere than normal (i.e. the luminescence causes the cells to undergo photosynthesis). The Taiwanese research team behind the discovery hopes to implement modified Bacopa caroliniana plants as environmentally friendly street lamps. Popular Science calls this a "triple threat," in that the "trees" could cut energy costs, reduce global warming, and keep streets safely lit at night.[3]

gollark: Just sell "employment", in a totally abstract sense.
gollark: No, I don't mean sell actual *people*.
gollark: Or if countries could sell employment, just in the abstract, if they have an excess of it, so other countries can boost their statistics.
gollark: It would be neat if you could *sell* unemployment too.
gollark: Hmm, yes, fair point. Split the research in half and make *half* of it public and the *other* half not public!

References
  1. Gesting Berti, Nature and Aquarium, Bioplast
  2. "Nanoparticles make leaves glow".
  3. "Trees Infused With Glowing Nanoparticles Could Replace Streetlights".
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