
Appearance
"T. pallida" is an evergreen perennial plant of scrambling stature. It is distinguished by elongated, pointed leaves - themselves glaucous green, fringed with red or purple - and bearing small, sterile three-petaled flowers of white, pink or purple. Plants are top-killed by moderate frosts, but will often sprout back from roots. Protection by mulching will increase the chances of sprouting in marginal areas.
Naming
Edward Palmer was the first European to observe and assign a Latin name to the type specimen near Ciudad Victoria, Tamaulipas in 1907.There is some controversy regarding the correct scientific name for this plant species, with certain authorities continuing to refer to it as "Setcreasea purpurea" or "Setcreasea pallida". The comparatively more recent denomination "Tradescantia pallida" appears to enjoy greater acceptance and wider usage at the present time.
Uses
As a houseplant, "T. pallida" has been judged exceptionally effective at improving indoor air quality by filtering out volatile organic compounds, a class of common pollutants and respiratory irritants, via a process known as phytoremediation.References:
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