Anthurium planadense
Terrestrial; juvenile with petiole 20-30 cm long, 1-2 mm diam.; blade ovate-triangular to cordate, 15-20 cm long, 7-10 cm wide; adult with stems to ca. 60 cm long; internodes short (1-3 cm long), 2-3 cm diam., drying reddish brown; cataphylls to 10 cm long, persisting as coarse reticulum of fibers with a few longitudinal fragments of epidermis at upper nodes, longitudinally somewhat organized below, fibers reddish brown fresh, drying tan; petioles 70-80 cm long (averaging 76 cm), 4-6 mm diam., terete, sometimes obscurely and narrowly sulcate adaxially, almost matte, asperous, weakly striate; geniculum swollen, tinged purple, 2-3 cm long; blades ovate-cordate, acuminate at apex, cordate at base, 49-57 cm long, 24-26 cm wide (averaging 53 X 25 cm), 2-2.2 times longer than broad, .7-.75 times longer than the petioles, broadest at or near point of petiole attachment, subcoriaceous, dark green and matte above, moderately paler and semiglossy below, drying dark brown above, reddish brown; anterior lobe 34-38 cm long, the lateral margins almost straight; posterior lobes 15-19 cm long, 9.5-11.5 cm wide, directed inward and the lobes sometimes overlapping on dried specimens; sinus obovate, 14-18 cm deep, 5 cm wide; midrib acutely raised and purplish above, round-raised and paler below; basal veins 8-9 pair, the 1st (-2nd) pair free to the base, the remainder variously coalesced 9-11 cm, acutely raised below; posterior rib naked 6-10 cm, broadly curved; primary lateral veins 15-25 per side, departing midrib at ca. 60° angle, ascending to collective vein, deeply quilted-sunken above, prominently raised below; collective vein arising from near base, as prominent as primary lateral veins, 1-2 mm from margin; INFLORESCENCES erect-spreading; peduncle 22-27 cm long, 2-5 mm diam., drying reddish-brown; spathe lanceolate, 7-9 cm long, 2.0-2.7 cm wide, green, tinged maroon weakly within and on veins outside, hooding spadix, lanceolate, acuminate at apex; spadix maroon, cylindroid, matte, 7-9 cm long, 5-7 mm diam. Flowers 10-12 on the primary spiral, 2.0-2.3 mm long, 1.7-2.0 mm wide, pistils whitish, emergent; stamens exserted; pollen white.
Anthurium planadense is apparently endemic to the type locality in La Planada (hence the name A. planadense), Colombia (Narino), where it is moderately rare. It was seen only along Sendero Vieja, and along ridge top in direction of La Pina at elevations up to 2,010 m, in Premontane wet forest life zone.