Euphorbia (spurge) is a very large and diverse genus of flowering plants in the spurge family (Euphorbiaceae). Sometimes in ordinary English, "euphorbia" is used to refer to the entire Euphorbiaceae family (as the type genus), not just to members of the genus. Some euphorbias are commercially widely available, such as poinsettias at Christmas. Some are commonly cultivated as ornamentals, or collected and highly valued for the aesthetic appearance of their unique floral structures, such as the crown of thorns plant. Euphorbias from the deserts of Southern Africa and Madagascar have evolved physical characteristics and forms similar to cacti of North and South America, so they (along with various other kinds of plants) are often incorrectly referred to as "cacti". Some are used as ornamentals in landscaping, because of beautiful or striking overall forms, and drought and heat tolerance
- Euphorbia albomarginata – rattlesnake weed, white-margined sandmat
- Euphorbia amygdaloides – wood spurge
- Euphorbia antisyphilitica – candelilla
- Euphorbia balsamifera – sweet tabaiba (Canary Islands)
- Euphorbia canariensis – cardón (Canary Islands)
- Euphorbia caput-medusae - Medusa's head (South Africa)
- Euphorbia characias - Mediterranean spurge
- Euphorbia cotinifolia - copper tree
- Euphorbia cyparissias – cypress spurge
- Euphorbia dendroides - tree spurge
- Euphorbia epithymoides – cushion spurge
- Euphorbia esula – leafy spurge
- Euphorbia grantii – African milk bush
- Euphorbia helioscopia – sun spurge
- Euphorbia heterophylla – painted euphorbia, desert poinsettia, fireplant, paint leaf, kaliko
- Euphorbia horrida - African milk barrel
- Euphorbia ingens - candelabra tree
- Euphorbia labatii
- Euphorbia lactea – mottled spurge, frilled fan, elkhorn
- Euphorbia lathyris – caper spurge, paper spurge, gopher spurge, gopher plant, mole plant
- Euphorbia leuconeura – Madagascar jewel
- Euphorbia maculata – spotted spurge, prostrate spurge
- Euphorbia marginata – snow on the mountain
- Euphorbia mammillaris
- Euphorbia maritae
- Euphorbia milii – crown-of-thorns, Christ plant
- Euphorbia myrsinites – myrtle spurge, creeping spurge, donkey tail
- Euphorbia obesa
- Euphorbia paralias – sea spurge
- Euphorbia pekinensis - Peking spurge
- Euphorbia peplis – purple spurge
- Euphorbia peplus – petty spurge
- Euphorbia polychroma - bonfire
- Euphorbia psammogeton – sand spurge
- Euphorbia pulcherrima – poinsettia, Mexican flame leaf, Christmas star, winter rose, noche buena, lalupatae, pascua, Atatürk çiçeği (Turkish)
- Euphorbia purpurea
- Euphorbia resinifera – resin spurge
- Euphorbia rigida – gopher spurge, upright myrtle spurge
- Euphorbia serrata – serrated spurge, sawtooth spurge
- Euphorbia tirucalli – Indian tree spurge, milk bush, pencil tree, firestick
- Euphorbia tithymaloides – devil's backbone, redbird cactus, cimora misha (Peru)
- Euphorbia trigona – African milk tree, cathedral cactus, Abyssinian euphorbia
- Euphorbia virosa
- https://en.wikipedia.org/wiki/Euphorbia
- Hoyas are evergreen perennial creepers or vines or rarely, shrubs. They often grow epiphytically on trees; some grow terrestrially, or occasionally in rocky areas. They climb by twining, and with the employment of adventitious roots. Larger species grow 1–18 m (3–59 ft), or more, with suitable support in trees. They have simple entire leaves, arranged in an opposite pattern, that are typically succulent. Leaves may exhibit a variety of forms, and may be smooth, felted or hairy; veination may be prominent or not, and many species have leaf surfaces flecked with irregular small silvery spots.
- Hoya anulata – Australia (Queensland), Indonesia (Irian Jaya), Papua New Guinea
- Hoya archboldiana – Indonesia, Papua New Guinea
- Hoya australis – Australia, Fiji, Indonesia (Irian Jaya), Papua New Guinea, Solomon Islands, Tonga
- Hoya australis ssp. australis – Australia (Queensland, New South Wales), Samoa, Vanuatu
- Hoya australis ssp. oramicola – Australia (Northern Territory)
- Hoya australis ssp. rupicola – Australia (Western Australia, Northern Territory)
- Hoya australis ssp. sanae Australia (Queensland)
- Hoya australis ssp. tenuipes – Australia (Queensland), Fiji, Indonesia (Irian Jaya), Papua New
- Guinea, Solomon Islands, Tonga
- Hoya benguetensis – Philippines
- Hoya bilobata – Philippines
- Hoya bordenii – Philippines
- Hoya calycina – Indonesia, Papua New Guinea
- Hoya calycina ssp. calycina Indonesia (Irian Jaya), Papua New Guinea
- Hoya calycina ssp. glabrifolia – Indonesia (Irian Jaya), Papua New Guinea
- Hoya carnosa – S. China, India, Japan, Taiwan, Australia (Queensland), Fiji
- Hoya caudata – Malaysia (Malacca), S. Thailand
- Hoya cinnamomifolia – Indonesia (Java)
- Hoya coriacea – Malaysia, Philippines, Thailand
- Hoya crassicaulis – Philippines
- Hoya cumingiana – Philippines
- Hoya diptera – Fiji (Viti Levu, Taviuni)
- Hoya diversifolia – Cambodia, Indonesia (Borneo, Java, Sumatra), Laos, Malaysia, Myanmar, Philippines, Singapore, S. Thailand, S. Vietnam
- Hoya eitapensis – Papua New Guinea
- Hoya elliptica – Malaysia, Thailand, Singapore
- Hoya engleriana – Cambodia, Laos, Thailand, Vietnam
- Hoya erythrostemma – Malaysia, Myanmar, S. Thailand
- Hoya finlaysonii – Indonesia (Borneo, Sumatra), Malaysia, Myanmar, S. Thailand
- Hoya fuscomarginata – Only known from cultivation.
- Hoya globulosa – India (Sikkim), Nepal
- Hoya heuschkeliana – Philippines (Luzon)
- Hoya hypolasia – Papua New Guinea
- Hoya imbricata – Indonesia (Sulawesi), Philippines
- Hoya imperialis Philippines, Malaysia
- Hoya inconspicua – Australia (Queensland), Papua New Guinea, Solomon Islands
- Hoya kentiana – Philippines
- Hoya kerrii – China, Cambodia, Indonesia (Java), Laos, NW. Thailand, S. Vietnam
- Hoya lacunosa – India, China, Malaysia, Singapore, Thailand, Indonesia (Borneo, Java, Sumatra)
- Hoya lanceolata – India, Nepal, Bhutan, Myanmar
- Hoya lanceolata ssp. bella – India, Nepal, S. Myanmar
- Hoya lanceolata ssp. lanceolata – Bhutan, India, Myanmar, Nepal
- Hoya latifolia – Myanmar, Malaysia, S. Thailand, Indonesia (Borneo, Java, Sumatra)
- Hoya limoniaca – New Caledonia
- Hoya linearis – China (Yunnan), India (Sikkim), Nepal
- Hoya longifolia – Bhutan, China, India, Nepal, Pakistan, Singapore, Thailand
- Hoya macgillivrayi – Australia (Queensland)
- Hoya macrophylla – Indonesia (Borneo, Java)
- Hoya magnifica – Papua New Guinea
- Hoya megalaster – Papua New Guinea
- Hoya meliflua – Philippines
- Hoya meredithii – Malaysia (Borneo)
- Hoya mindorensis – Philippines
- Hoya multiflora – China, Indonesia, Laos, Malaysia, Myanmar, Philippines, Thailand, Vietnam
- Hoya nicholsoniae – Australia (Queensland), Papua New Guinea, Solomon Islands
- Hoya nummularioides – Cambodia, Laos, Thailand, Vietnam
- Hoya obovata – India, Indonesia, Thailand, Fiji
- Hoya obscura – Philippines
- Hoya pachyclada – Thailand
- Hoya parviflora – India, Malaysia, Myanmar, Indonesia, Thailand
- Hoya parvifolia – Indonesia (Sumatra)
- Hoya pauciflora – India (Malabar, Kerala), Sri Lanka
- Hoya pottsii – China
- Hoya pubicalyx – Philippines
- Hoya purpureo-fusca – Indonesia (Java)
- Hoya retusa – India (Assam, Bombay Presidency), Indonesia (Sulawesi)
- Hoya revoluta – Cambodia, Indonesia (Borneo, Java, Sumatra), Laos, Malaysia (Malacca), S. Thailand, Vietnam
- Hoya serpens – Australia (Queensland), India (E. Himalaya), Nepal
- Hoya shepherdii – SW. China, India
- Hoya siamica – Cambodia, India, Laos, NW. Thailand, Vietnam
- Hoya thailandica – Thailand (Chang Mai)
- Hoya thomsonii – China (Xizang), India (Assam)
- Hoya tsangii – China, Philippines (Mindanao)
- Hoya verticillata – Brunei, Cambodia, E. India, Indonesia (Borneo, Java, Sulawesi, Sumatra), Laos, Malaysia, Thailand, Singapore
- Hoya vitellina – Indonesia (Java)
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