Epiphyte; cataphylls 6-10 cm long, weathering to longitudinal fibers.

LEAVES with petioles 27-44 cm long, 6-8 mm diam.; blades ovate, moderately thick, 26-37 cm long, 18-24 cm wide, broadest just below middle, acute at apex, lobed al base; the anterior lobe 24-29 cm long; posterior lobes 6.5-8 cm long; the sinus parabolic, round at apex; the midrib drying ± flat above, raised below; basal veins 3-5 pairs; primary lateral veins 6-8 per side, drying raised on both surfaces; lesser veins drying prominulous on both surfaces; collective vein arising from the first or second basal vein.

INFLORESCENCE with peduncle 13.5-39.5 cm long, 4-5 mm diam.; spathe green, thick, 5-12 cm long, 1.5-6.5 cm wide, narrowly ovate to ovate, long-acuminate at apex, cordate al base, broadest just above base; spadix
4-12 cm long, 1.5-2 cm diam.; flowers rhombic,
5-6 mm long; 4.5-6 mm wide, 6-7 flowers visible in the principal spiral, 6-8 flowers visible in the alternate spiral; lateral tepals 1.5-1.8 mm wide; pistils raised; stigmas linear, ca. 0.6 mm long, drying brown; stamens exserted on filaments ca. 0.5 mm long, ca. 0.9 mm wide; thecae ellipsoid.

INFRUCTESCENCE with subgloboseberries, ca. 6 mm diam., immature berries yellow. Fig. 190.

Anthurium subcordatum ssp. chlorocardium is endemic to Honduras on Cerro Santa Barbara (Department of Santa Barbara) at elevations of 2,200 to 2,750 m.
Subspecies chlorocardium is a member of section Belolonchium and is distinguished by its narrowly ovate to ovate spathe and its geographical isolation.
 
 

Map of Mesoamerican specimens with coordinates

Guatemala Quiche: 2660-2730 m,, 1964, Proctor 25422 (LL).
Honduras Santa Bárbara: 2200-2350 m., 88.05N 14.55W, 30 Apr. 1973, Clewell & Harlett 3916 (WIS).
Honduras Santa Bárbara: 2200-2500 m, 14.55N 88.7W, 23 Nov 1991, Robbin C. Moran 5709 (MO).