Scientific name: Hedychium coronarium [Family: Zingiberaceae]
Common name: White Ginger Lily, Butterfly Ginger
Chinese name: 姜花
Location: Singapore
Date taken: 2 January 2009
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Scientific name: Hedyotis auricularia [Family: Rubiaceae]
Synonym: Oldenlandia auricularia
Common name: Kerekah Batu
Location: Singapore
Date taken: 5 July 2009
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Scientific name: Hedyotis congesta [Family: Rubiaceae]
Synonym: H. philippensis, H. laevigata, H. prostrata, Knoxia corymbosa, Metabolus laevigatus, Metabolus prostrates, Spermacoce philippensis
Common name: -
Location: Singapore
Date taken: 17 January 2009
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Scientific name: Hedyotis diffusa [Family: Rubiaceae]
Synonym: H. brachypoda, Oldenlandia diffusa
Common name: Bai Hua She She Cao
Chinese name: 白花蛇舌草
Location: Singapore
Date taken: 6 September 2008
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Scientific name: Helianthus annuus [Family: Asteraceae / Compositae]
Common name: Common Sunflower
Chinese name: 向日葵 , 太阳花 , 葵花
Location: Malaysia
Date taken: 11 June 2004
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Scientific name: Heliconia caribaea [Family: Heliconiaceae]
Common name: -
Location: Singapore
Date taken: 7 February 2008
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Scientific name: Heliconia chartacea [Family: Heliconiaceae]
Common name: Pink Flamingo
Location: Singapore
Date taken: 7 February 2008
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Scientific name: Heliconia latispatha [Family: Heliconiaceae]
Common name: Golden Lobster Claw, Expanded Lobster Claw
Location: Singapore
Date taken: 10 July 2010
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Scientific name: Heliconia psittacorum [Family: Heliconiaceae]
Common name: Golden Torch
Location: Singapore
Date taken: 19 January 2007
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HYBRID/CULTIVAR , HYBRID/CULTIVAR [2]

Scientific name: Heliconia rostrata [Family: Heliconiaceae]
Common name: Lobster Claw, False Bird of Paradise
Chinese name: 金鸟赫蕉
Location: Singapore
Date taken: 21 July 2010
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Scientific name: Heliotropium indicum [Family: Boraginaceae]
Common name: Indian Heliotrope
Chinese name: 狗尾草 , 大尾搖
Location: Singapore
Date taken: 4 October 2009
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Scientific name: Hemigraphis alternata [Family: Acanthaceae]
Synonym: H. colorata, Ruellia alternata, Ruellia colorata
Common name: Red Flame Ivy, Red Ivy
Chinese name: 灰姑娘 , 紫叶半插花 , 假紫苏
Location: Singapore
Date taken: 10 August 2009
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Scientific name: Hemigraphis repanda [Family: Acanthaceae]
Synonym: Ruellia repanda
Common name: Narrow Leaf Hemigraphis, Dragon's Tongue
Location: Singapore
Date taken: 17 April 2010
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Scientific name: Hemigraphis reptans [Family: Acanthaceae]
Synonym: H. primulifolia, H. pacifica, Ruellia primulifolia, Ruellia reptans
Common name: -
Chinese name: 恆春半插花
Location: Singapore
Date taken: 7 March 2009
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Scientific name: Heritiera littoralis [Family: Sterculiaceae]
Common name: Dungun
Location: Singapore
Date taken: 20 September 2009
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Scientific name: Hevea brasiliensis [Family: Euphorbiaceae]
Synonym: Siphonia brasiliensis
Common name: Rubber Tree
Chinese name: 橡胶树
Location: Singapore
Date taken: 31 January 2010
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Scientific name: Hibiscus mutabilis [Family: Malvaceae]
Common name: Chinese Rose
Chinese name: 木芙蓉
Location: Singapore
Date taken: 12 July 2009
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Scientific name: Hibiscus rosa-sinensis [Family: Malvaceae]
Common name: Chinese Hibiscus, Rose of China
Chinese name: 朱槿 , 扶桑 , 大红花
Location: Singapore
Date taken: 14 February 2010
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HYBRID/CULTIVAR [1] , HYBRID/CULTIVAR [2] , HYBRID/CULTIVAR [3] , HYBRID/CULTIVAR [4] , HYBRID/CULTIVAR [5] , HYBRID/CULTIVAR [6] , HYBRID/CULTIVAR [7] , HYBRID/CULTIVAR [8] , HYBRID/CULTIVAR [9] , HYBRID/CULTIVAR [10] , HYBRID/CULTIVAR [11] , HYBRID/CULTIVAR [12] , HYBRID/CULTIVAR [13] , HYBRID/CULTIVAR [14] , HYBRID/CULTIVAR [15]

Scientific name: Hibiscus sabdariffa [Family: Malvaceae]
Common name: Roselle
Chinese name: 洛神葵
Location: Singapore
Date taken: 27 September 2009
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Scientific name: Hibiscus schizopetalus [Family: Malvaceae]
Synonym: Hibiscus rosa-sinensis var. schizopetalus
Common name: Japanese Hibiscus, Japanese Lantern, Fringed Hibiscus, Coral Hibiscus
Chinese name: 吊灯扶桑 , 裂瓣槿 , 灯笼花
Location: Singapore
Date taken: 10 June 2008
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Scientific name: Hippeastrum hybrid [Family: Amaryllidaceae]
Common name: Amaryllis
Location: Malaysia
Date taken: 10 August 2007
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Scientific name: Hippobroma longiflora [Family: Campanulaceae]
Synonym: Laurentia longiflora, Isotoma longiflora, Lobelia longiflora
Common name: Star of Bethlehem
Chinese name: 同瓣草 , 鬼点灯
Location: Singapore
Date taken: 2 January 2008
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Scientific name: Holmskioldia sanguinea [Family: Verbenaceae]
Common name: Cup and Saucer, Chinese Hat, Parasol Flower
Location: Singapore
Date taken: 2 January 2009
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Scientific name: Homalocladium platycladum [Family: Polygonaceae]
Synonym: Muehlenbeckia platyclados, Polygonum platycladum
Common name: Tapeworm Plant, Ribbon Bush, Centipede Plant
Chinese name: 竹节蓼
Location: Singapore
Date taken: 10 August 2009
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Scientific name: Homalomena griffithii [Family: Araceae]
Synonym: H. sulcata
Common name: -
Location: Singapore
Date taken: 3 July 2010
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Scientific name: Hornstedtia scyphifera [Family: Zingiberaceae]
Common name: Great Spindle Ginger
Location: Singapore
Date taken: 17 October 2009
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Scientific name: Houttuynia cordata [Family: Saururaceae]
Synonym: Gymnotheca chinensis, Polypara cochinchinensis
Common name: Fish Plant
Chinese name: 魚腥草 , 蕺菜
Location: Singapore
Date taken: 21 July 2010
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Scientific name: Hoya diversifolia [Family: Asclepiadaceae]
Common name: -
Location: Singapore
Date taken: 5 July 2009
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Scientific name: Hoya pachyclada [Family: Asclepiadaceae]
Common name: -
Location: Singapore
Date taken: 13 November 2009
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Scientific name: Hoya verticillata [Family: Asclepiadaceae]
Common name: -
Location: Singapore
Date taken: 17 February 2010
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Scientific name: Huperzia phlegmaria [Family: Lycopodiaceae]
Synonym: Lycopodium phlegmaria, Phlegmariurus phlegmaria
Common name: Coarse Clubmoss, Coarse Tassel Fern
Location: Singapore
Date taken: 26 January 2009
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Scientific name: Huperzia squarrosa [Family: Lycopodiaceae]
Synonym: Lycopodium squarrosum, Phlegmariurus squarrosus
Common name: Rock Tassel Fern, Water Tassel Fern
Location: Singapore
Date taken: 14 February 2010
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Scientific name: Hydrangea macrophylla [Family: Hydrangeaceae]
Synonym: H. acuminata, H. chungii, H. hortensia, H. kwangsiensis, H. opuloides, H. serrata, H. stylosa, H. thunbergii, Hortensia opuloides, Viburnum macrophyllum, Viburnum serratum
Common name: Hydrangea
Chinese name: 八仙花 , 紫阳花
Location: Singapore
Date taken: 2 January 2009
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Scientific name: Hydrocotyle sibthorpioides [Family: Apiaceae / Umbelliferae]
Synonym: H. hirsuta, H. latisecta, H. puncticulata, H. rotundifolia
Common name: Asiatic Pennywort, Water Pennywort
Chinese name: 天胡荽
Location: Singapore
Date taken: 13 May 2008
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Scientific name: Hydrocotyle umbellata [Family: Apiaceae / Umbelliferae]
Common name: Water Pennywort, Marsh Pennywort
Location: Singapore
Date taken: 4 October 2009
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Scientific name: Hylocereus undatus [Family: Cactaceae]
Common name: Dragon Fruit, Red Pitaya, Night Blooming Cereus
Chinese name: 火龙果 , 红龙果
Location: Singapore
Date taken: 5 July 2009
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Scientific name: Hymenocallis speciosa [Family: Amaryllidaceae]
Common name: Spider Lily, White Spice
Chinese name: 水鬼蕉 , 蜘蛛兰
Location: Singapore
Date taken: 18 April 2009
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Scientific name: Hypolytrum nemorum [Family: Cyperaceae]
Common name: Wooded Hypolytrum
Chinese name: 割鸡芒
Location: Singapore
Date taken: 15 November 2008
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Scientific name: Hyptis capitata [Family: Lamiaceae / Labiatae]
Common name: Lesser Roundhead, Knobweed, False Ironwort
Location: Singapore
Date taken: 20 December 2008
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Scientific name: Hyptis suaveolens [Family: Lamiaceae / Labiatae]
Synonym: Ballota suaveolens
Common name: Pignut, Wild Spikenard
Chinese name: 香苦草 , 山香 , 山薄荷
Location: Singapore
Date taken: 6 December 2009
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