Flora Singapore List H

"Diffuse to trailing hers; stem 4-angled, bluish, villous when young. Leaves 2-7 x 1-2.5 cm, elliptic-ovate or elliptic-lanceolate, base rounded or cuneate, apex shortly acuminate, lateral nerves 4 or 5 pairs, glabrous; stipules broadly ovate, pectinate on margins. Flowers fascicled at axils; pedicels c. 1 mm long. Calyx tube c. 1 mm long, 4-lobed. Corolla white, campanulate; tube c. 1 mm long; lobes 4, reflexed, hairy at throat. Stamens 4, included. Capsule c. 2 mm across, globose, pubescent, indehiscent. Seeds many, black, 3-angled." less ↑

An erect, c. 1 m tall shruby plant with broad, flat, thin, articulate, delicately striate, ribbon-like phylloclades. Leaves sessile, membranous, entire, often lobed at base, 1.5-6.5 cm long. Ochreae 1-2 mm long, ovate, obtuse. Flowers 1-6 in sessile clusters, bracteate, bracts ovate, c. 1 mm long. Perianth segments 5, greenish, oblong, 1-1.5 mm long. Stamens 8. Ovary ovoid, 3-angular c. 1 mm long; styles 3. Nuts enclosed in the fleshy deep red or purplish perianth. less ↑

Subshrubs epiphytic. Stems climbing to 1.5 m by adventitious roots, glabrous or sparsely pubescent. Petiole 3-12 mm, subglabrous; leaf blade ovate or ovate-lanceolate, 2-5 × 1.2-3 cm, glabrous or subglabrous, base cuneate or rounded, apex acute; lateral veins 2-4 pairs, obscure. Peduncle 2.5-7 cm, robust. Pedicel 5-13 mm. Sepals obtuse. Corolla white with violet dots, 6-7 mm in diam., tube conspicuously white villous inside; lobes suborbicular, much longer than tube. Corona lobes ovate, constricted at middle, outer angle rounded, inner angle acute, surface with a thin keel. Apical anther membranes triangular, exceeding stigma head; pollinia subobovate. Follicles lanceolate, 5-7 cm. less ↑

Histiopteris incisa known as the Bat's Wing Fern or Water Fern is a common plant found in Australia, New Zealand and other islands in the south Pacific region. Usually found in moist areas, where it may form large colonies. Fronds are soft and green. Up to two metres long, opposite on the stem, with deeply lobed segments. The rhizome is 2 to 7 mm wide, with brown or reddish scales, around 5 mm long. less ↑

Huperzia is a genus of Lycophyte plants, sometimes known as the firmosses or fir clubmosses. This genus was originally included in the related genus Lycopodium, from which it differs in having undifferentiated sporangial leaves, and the sporangia not formed into apical cones. The common name firmoss, used for some of the north temperate species, refers to their superficial resemblance to branches of fir (Abies), a conifer. In Australia, the epiphytic species are commonly known as Tassel... less ↑

Plants perennial, hydrophytic, glabrous. Stem erect, to 1 m tall, fleshy, many branched; underwater part white, ca. 4 mm in diam., with fibrous roots; above water part green, often pink-tinged. Leaves alternate, sessile or shortly petiolate, with 1 pair of sessile basal glands; leaf blade pale green abaxially, dark green adaxially, linear or linear-lanceolate, 10-20 × 0.6-1.5 cm, lateral veins 10-17 pairs, base cuneate, margin serrate, apex acute or acuminate. Racemes 3-5-flowered; peduncles 0.7-1.6 cm. Pedicel 1.2-3 cm, slender, bracteate at base; bracts caducous, lanceolate, 6-9 mm, apex acute or acuminate. Flowers pink or yellowish. Lateral sepals 4; outer 2: 1.2-1.5 × ca. 0.8 cm, apex slightly acute or obtuse; inner 2: 1-1.5 × ca. 1.2 cm,
apex obtuse. Lower sepal navicular, 1.5-2 cm deep, mouth vertical, abruptly constricted into an incurved spur; spur 6-8 mm. Upper petal subcucullate, obovate, 1.5-1.9 × 1.2-1.5 cm, apex mucronulate; lateral petals 4, all free; upper 2 elliptic to elliptic-obovate, 1.3-1.5 cm × 7-9 mm; lower 2 narrowly oblong, 2-2.5 cm × 6-8 mm, apex slightly obtuse. Stamens 5, 0.9-1.1 cm; anthers obtuse. Ovary glabrous. Fruit purple-red at maturity, globose, 0.8-1 cm. Seeds 1 per locule, rugose. Fl. and fr. Sep-Nov. 2n = 16. less ↑

Hydrangea macrophylla is a species of flowering plant in the family Hydrangeaceae, native to China and Japan. It is a deciduous shrub growing to 2 m (7 ft) tall by 2.5 m (8 ft) broad with large heads of pink or blue flowers in summer and autumn. Common names include bigleaf hydrangea, french hydrangea, lacecap hydrangea, mophead hydrangea, penny mac and hortensia. It is widely cultivated in many parts of the world in many climates. It is not to be... less ↑

Plants glabrous throughout except for corolla throat. Stems erect or decumbent, to 2.5 m tall, pale gray, yellowish when dry, with persistent leaf scars. Petiole 1-2 cm; leaf blade oblong-lanceolate, 8-18 × 2-6 cm, thick papery when dried, base cuneate, apex obtusely acuminate; lateral veins obscure. Inflorescences extra-axillary, subterminal, or terminal, hemispherical, many flowered; peduncle stout, 1.5-3 cm. Pedicel 3.5-7 cm. Sepals ovate, ca. 2.5 × 1.7 mm; glands many, linear. Corolla yellowish white with orange lobe apices, 1.6-1.8 cm, strongly reflexed from base; limb ca. 6 mm, throat white villous; lobes oblong-triangular, ca. 1.2 × 0.8 cm. Corona on distinct stalk; lobes yellow, narrowly lanceolate, 8-9 mm, outer angles extended into acuminate spurs, inner angles acuminate, higher than stigma head. Follicles linear-lanceolate in outline, 12-18 cm. Seeds ovate, ca. 4 × 2 mm; coma to 5 cm. Fl. May-Jul, fr. Sep-Dec. less ↑

The sunflower (Helianthus annuus) is an annual plant native to the Americas. It possesses a large inflorescence (flowering head), and its name is derived from the flower's shape and image, which is often used to capture the sun. The plant has a rough, hairy stem, broad, coarsely toothed, rough leaves, and circular flower heads. The heads consist of many individual flowers which mature into seeds, often in the hundreds, on a receptacle base. From the Americas,... less ↑

Hosea (/ˌhoʊˈziːə/ or /hoʊˈzeɪə/; Hebrew: הוֹשֵׁעַ, Modern Hoshea Tiberian Hôšēăʻ ; "Salvation"; Greek Ὠσηέ, Hōsēe) was the son of Beeri, a prophet in Israel in the 8th century BC and author of the book of prophecies bearing his name. He is one of the Twelve Prophets of the Jewish Hebrew Bible, also known as the Minor Prophets of the Christian Old Testament. Hosea is often seen as a "prophet of doom", but underneath his message of destruction is a... less ↑

Plants strongly aromatic. Stem weak, slender, filiform, creeping, diffusely branched. Petioles 0.7–9 cm, glabrous or distally pubescent; leaf blade reniform-rounded, 0.5–1.5 × 0.8–2.5 cm; membranous, variably hairy, adaxially glabrous and abaxially sparsely strigose along veins, or sometimes both surfaces glabrous or densely puberulous, base cordate, entire or shallowly 5–7-lobed, lobes rounded. Umbel solitary at the nodes, each umbel 5–8-flowered; peduncle filiform, 0.5–3.5 cm, 1–1/3 the length of the petioles; bracts ovate to ovate-lanceolate, 1–1.5 mm, membranous, with bright yellow glands; pedicels obsolete or almost so. Petals greenish white, ca. 1.2 mm, with yellow glands. Styles 0.6–1 mm, spreading. Fruit broadly globose, greenish yellow when young, covered with purplish stains when mature; intermediate ribs very prominent. Fl. and fr. Apr–Sep. less ↑

Hydrocotyle umbellata, is an aquatic plant that thrives in wet, sandy habitat. Its English common name is manyflower marsh pennywort or dollarweed. It is native to North America and parts of South America. It can also be found growing as an introduced species and sometimes a noxious weed on other continents. It is an edible weed that can be used in salads or as a pot herb. less ↑

Hydrocotyle verticillata, also known as whorled pennywort or shield pennywort, is a flowering plant found in South and North America and the West Indies. The creeping plants with unusual leaves give it its common names. It grows in places that are marshy, boggy, and wet.Hydrocotyle verticillata is used in aquaria, where it is undemanding but prefers a good substrate, and at least moderate light. It benefits from additional carbon dioxide. It is widely used as a... less ↑

Hibiscus (/hɨˈbɪskəs/ or /haɪˈbɪskəs/) is a genus of flowering plants in the mallow family, Malvaceae. It is quite large, containing several hundred species that are native to warm-temperate, subtropical and tropical regions throughout the world. Member species are often noted for their showy flowers and are commonly known simply as hibiscus, or less widely known as rose mallow. The genus includes both annual and perennial herbaceous plants, as well as woody shrubs and small trees. The... less ↑

Cranberry hibiscus (Hibiscus acetosella) is an angiosperm of the genus Hibiscus L. or rosemallow. The word acetosella is of Latin origin and is derived from an old name for sorrel (Oxalis) which comes from the sour taste experienced when eating the young leaves of the plant.Hibiscus acetosella is also known colloquially as African rosemallow, false roselle, maroon mallow, cranberry hibiscus, red leaved hibiscus, and red shield hibiscus. It is one of the approximately 200–300 species that... less ↑

Hibiscus tiliaceus is a species of flowering tree in the mallow family, Malvaceae, that is native to the Old World tropics. Common names include Sea Hibiscus, Beach Hibiscus, Coastal (or Coast) Hibiscus, Coastal (or Coast) Cottonwood, Green Cottonwood, Native Hibiscus, Native Rosella, Cottonwood Hibiscus, Kurrajong, Sea Rosemallow, Norfolk Hibiscus, Hau (Hawaiian), and Purau (Tahitian). The specific epithet, "tiliaceus", refers to its resemblance to the related Tilia species. less ↑

Hopea is a genus of plants in the family Dipterocarpaceae. The genus was named after John Hope, 1725-1786, the first Regius Keeper of the Royal Botanic Garden, Edinburgh. It contains about 104 species, distributed from Sri Lanka and southern India to southern China, and southward throughout Malesia to New Guinea. They are mainly main and subcanopy trees of lowland rainforest, but some species can become also emergent trees, such as Hopea nutans. less ↑

Hopea odorata, or Ta-khian (Thai: ตะเคียน), is a species of plant in the Dipterocarpaceae family. It is found in Bangladesh, Cambodia, India, Laos, Malaysia, Myanmar, Thailand, and Vietnam. It is a large tree reaching up to 45 m in height with the base of the trunk reaching a diameter of 4.5 m. It grows in forests, preferably near rivers, at altitudes between 0 and 600m. In places such as West Bengal and the Andaman Islands it is often planted as a shade tree. Valued for its wood, it is a threatened species in its natural habitat. less ↑

Horsfieldia superba is a species of plant in the Myristicaceae family. It is found in Indonesia, Malaysia, and Singapore, and is threatened by habitat loss. It is used in traditional herbal medicine and contains an alkaloid called horsfiline, which has analgesic effects, as well as several other compounds including 5-MeO-DMT and 6-methoxy-2-methyl-1,2,3,4-tetrahydro-β-carboline. less ↑

Hura crepitans, the sandbox tree, also known as possumwood and jabillo, is an evergreen tree of the spurge family (Euphorbiaceae), native to tropical regions of North and South America, including the Amazon Rainforest. It is recognized by the many dark, pointed spines and smooth brown bark. These spines have caused it to be called Monkey no-climb. less ↑

Houttuynia cordata (simplified Chinese: 鱼腥草; traditional Chinese: 魚腥草; pinyin: yúxīng cǎo; literally "fishy-smell herb"; Japanese: Dokudami 蕺草, literally "poison blocking plant"; Vietnamese: giấp cá; pak kao tong (ຜັກຄາວທອງ) in Lao; Korean: 약모밀. In Manipur, a Northeastern Indian State, its known as toningkok. In English, it is known as lizard tail, chameleon plant, heartleaf, fishwort and bishop's weed. It is one of two species in the genus Houttuynia, is a flowering plant native to Japan, Korea, southern... less ↑

Heteropogon contortus is a tropical, perennial tussock grass with a native distribution encompassing Southern Africa, southern Asia, Northern Australia and Oceania. The species has also become a naturalised weed in tropical and subtropical regions in the Americas and East Asia. The plant grows to 1.5 metres (4.9 ft) in height and is favoured in most environments by frequent burning. The plants develop characteristic dark seeds with a single long awn at one end and a sharp spike... less ↑

Hippeastrum /ˌhɪpiːˈæstrəm/ is a genus of about 90 species and 600+ hybrids and cultivars of perennial herbaceous bulbous plants in the family Amaryllidaceae, subfamily Amaryllidoideae, tribe Hippeastreae, subtribe Hippeastrineae native to tropical and subtropical regions of the Americas from Argentina north to Mexico and the Caribbean. Some species are grown for their large showy flowers. The name, derived from Knight's Star is said to be derived from a resemblance to a mediaeval weapon. For many years less ↑

Homalomena is a genus of flowering plants within the family Araceae. It is estimated to be composed of approximately 80 to 150 species. Homalomena are primarily found in southern Asia and the southwestern Pacific, but there are a few species that are known to be indigenous to South America. Many Homalomena have a strong smell of anise. The name derives apparently from a mi-translated Malayan vernacular name, translated as homalos, meaning flat, and mene = moon. less ↑

Hydrilla (Esthwaite Waterweed or Hydrilla) is a genus of aquatic plant, usually treated as containing just one species, Hydrilla verticillata, though some botanists divide it into several species. Synonyms include H. asiatica, H. japonica, H. lithuanica, and H. ovalifolica. It is native to the cool and warm waters of the Old World in Asia, Europe, Africa and Australia, with a sparse, scattered distribution; in Europe, it is reported from Ireland, Great Britain, Germany, and the Baltic... less ↑

Pseudostems 1.5--2 m. Leaves sessile; ligule lanceolate, 2--5 cm, membranous; leaf blade oblong-lanceolate, 25--45 × 5--8.5 cm, glabrous, base acute, apex acuminate. Spikes oblong, ca. 10 × 5 cm; bracts imbricate, oblong-ovate, 4--6 × 1.5--3 cm, 3- or 4-flowered; bracteoles ca. 2 cm, tubular. Flowers yellow. Calyx ca. 4 cm, hirsute, split on 1 side. Corolla tube longer than calyx; lobes linear, ca. 3 cm. Lateral staminodes oblanceolate, ca. 3 cm × 8 mm. Labellum yellow, obcordate, wider than long, ca. 4 cm, apex emarginate; claw short. Filament ca. 3 cm; anther 1.2--1.5 cm. Ovary hirsute. Stigma funnelform. Fl. Aug--Sep. less ↑

Heliconia, derived from the Greek word helikonios, is a genus of about 100 to 200 species of flowering plants native to the tropical Americas and the Pacific Ocean islands west to Indonesia. Many species of Heliconia are found in rainforests or tropical wet forests of these regions. Common names for the genus include lobster-claws, wild plantains or false bird-of-paradise. The last term refers to their close similarity to the bird-of-paradise flowers (Strelitzia). Collectively, these plants are... less ↑