Commonly known as Scarlet Bush. A shrub that can grow up to 12 feet high, stems are long, and slender with wide gap of leaf bundles, with protruding roots at the nodes, leaves; usually in loose whorls of three, elliptic-ovate to oblong, up to 8 inches long, acute or acuminate, petiolated, underneath is tinged with orange, flowers; elongated tube, scarlet orange, almost sessile, oftenly up to 5 rayed, in dense clusters, fruits; globular to ovoid, from red to purple. Native of southern Florida and Paraguay but distributed throughout the tropics.
Hedychium coronarium
Locally known as Camia. This plant is an erect ground herb with stout rootstock, to 1 m tall. Its leaves are distichous, short-petioled, oblong-lanceolate to lanceolate, acuminate and to 40 cm long. The spike is ellipsoid and to 10 cm long, bracts are green, ovate, or rounded, each with 2-3 flowers. The flowers are white and very fragrant, with tubular calyx, and slender corolla tube. The lobes are white, narrow-obovate, pale yellow at the center and to 6cm in diameter. It is native to India and widely cultivated in the Philippines, propagated by rhizome division.
Heliconia psittacorum
Perennial herb to 2 m long. Leaves are long-petioled, narrow lanceolate, bright green to 50 cm long and to 10 cm wide. Flowers are borne terminally by an erect peduncle to 30cm long; bracts are narrow, green or orange with red tips. Flowers are orange or greenish with green tips. Native to Guyana and Brazil. Rather widespread and common in the Philippines.
Heliconia rostrata R. & P.
Common name: hanging lobster claw. Perennial herb with banana-like leaves to 1.5 m long and to 30 cm wide. Inflorescence is showy, pendulous, to 60 cm long, reddish at the base, turning yellow at the tip; bracts are in two ranks, with greenish edge and to 10 cm long. Flowers are yellow green. Indigenous to Argentina to Peru. Recently introduced to the Philippines.
Hemigraphis alternata
A trailing herb, rooting at the nodes. Its leaves are ovate and cordate with crenate margins; metallic purple above, deep purple below. Flowers are small and white. It is native to Java. In the Philippines, it is used as ground cover and propagated by stem cuttings.
Hibiscus rosa-sinensis
Erect, branching, glabrous shrub to 4m tall. Its leaves are alternate, stipulate, ovate, acuminate, dark green, to 12 cm long with toothed margins. The flowers are solitary, axillary, to 10cm across, with 6 lanceolate bracteoles; calyx is toothed and green; the 5 petals are broad and obovate, rounded and imbricate; staminal tube is slender and longer than the corolla. It is native to Southeast Asia, now pantropic. Widely cultivated in the country, and propagated by cuttings, marcotting, grafting or layering.
Hippeastrum reticulum
Medium sized bulbs, trumpet shaped tropical lillies, 60cm long by 30 cm wide, leaves; few, oftenly basal, oblanceolate, longer than wide, thick, predominant midrib, flowers; horizontal, often in a bundle of 3, a top a slender, green, hollow stem, commonly pink streaked with white absence of crown, segments; obovate, narrowed as it reached the base.