Image source: Fernando Rivadavia http://rziemer.cpphotofinder.com/rziemer/Rivadavia/D.viridis%20Parelheiros%2001.jpg
Range: Southern Brazil, from Sao Paulo to Santa Catarina
This southern Brazilian endemic is an uncommon inhabitant of the mountain highlands near the coast, growing from 550-1100 meters in elevation in waterlogged areas, even submerged in some places, usually near grasses in humus or peat-rich soils or clay-laterite. Plants are acaulescent and grow to around 6 cm across, with flat to semi-erect (in aquatic areas) rosettes of distinctly paddle-shaped leaves. The petioles are lengthy and often up to 2/3 or more the leaf length, parallel and pilose along their margins but glabrous elsewhere, and lamina are broad and obovate (longer than wide) to nearly round, with a slightly flattened tip. As the name suggests, color is typically bright green, with light red tentacles; petioles can be red blushed thus producing a reverse-bicolor appearance, but the lamina are almost never even tinted with orange. Inflorescences may reach 30 cm tall, with the apex often bedecked in a moderate covering of glands and pilose hairs, and may bear up to 12 blooms. Flowers are up to 1.5 cm in diameter, with obovate light to dark lilac-colored petals. This species is often confused with D. communis, which is usually smaller and red and may possess hairs on the surfaces of petioles rather than just the margins.
Cultivation: grow in a 1:1 peat/perlite soil, kept extremely moist to soaked though well aerated, and very humid, with temps of 60-90°F, year round (may benefit from cooler nights). Sow seeds on soil surface, and grow in strong artificial light to full sun.
Lifespan and reproduction: perennial. Reproduces through seed and occasional division, and can be grown through leaf and root cuttings.