Question: Is it true that both Howea and Bulbophyllum can be found in countries in the Northern Hemisphere?

full_context: Document 1: Fabaceae: The Fabaceae or Papilionoideae, commonly known as the legume, pea, or bean family, is a large and economically important family of flowering plants. It includes trees, shrubs, and perennial or annual herbaceous plants, which are easily recognized by their fruit (legume) and their compound, stipulated leaves. Many legumes have characteristics of flowers and fruits. The family is widely distributed, and is the third-largest land plant family in terms of number of species, behind only the Orchidaceae and Asteraceae, with about 751 genera and some 19,000 known species. The five largest of the genera are "Astragalus" (over 3,000 species), "Acacia" (over 1000 species), "Indigofera" (around 700 species), "Crotalaria" (around 700 species) and "Mimosa" (around 500 species), which constitute about a quarter of all legume species. The ca. 19,000 known legume species amount to about 7% of flowering plant species. Fabaceae is the most common family found in tropical rainforests and in dry forests in the Americas and Africa.
Document 2: Castanospermum: Castanospermum australe (Moreton Bay Chestnut or Blackbean), the only species in the genus Castanospermum, is a flowering plant in the family Fabaceae, native to the east coast of Australia in Queensland and New South Wales, and to the Pacific islands of Vanuatu, New Caledonia, and the island of New Britain (Papua New Guinea). Members of this genus accumulate iminosugars in their leaves.
Document 3: Hakea: Hakea (pincushion tree) is a genus of 149 species of shrubs and small trees in the Proteaceae, native to Australia. They are found throughout the country, with the highest species diversity being found in the south west of Western Australia.
Document 4: Phalaenopsis: Phalaenopsis , known as moth orchids, abbreviated Phal in the horticultural trade, is an orchid genus of approximately 60 species. "Phalaenopsis" is one of the most popular orchids in the trade, through the development of many artificial hybrids. It is native to southern China, Taiwan, the Indian Subcontinent, Southeast Asia (Thailand, Philippines, Malaysia, Indonesia, etc.), New Guinea, the Bismarck Archipelago, and Queensland.
Document 5: Baumea: Baumea is a genus of the sedge family, which includes around 30 species native to Madagascar and the Pacific Islands, with 15 species in Australia. All are perennial rhizomatous herbs, with leaves and stems very similar in appearance. The inflorescence is terminal, with the flowers tightly clustered or loosely arranged. The fruits are small nuts.
Document 6: Paphiopedilum: Paphiopedilum, often called the Venus slipper, is a genus of the Lady slipper orchid subfamily "Cypripedioideae" of the flowering plant family Orchidaceae. The genus comprises some 80 accepted taxa including several natural hybrids. The genus is native to Southeast Asia, the Indian Subcontinent, southern China, New Guinea and the Solomon and Bismarck Islands.
Document 7: Bulbophyllum ivorense: Bulbophyllum ivorense is a species of orchid in the genus "Bulbophyllum". They are found in Tropical Moist Forests in the countries touching the Gulf of Guinea in Africa. It was described by Cribb and Perez-Vera.
Document 8: Macadamia: Macadamia is a genus of four species of trees indigenous to Australia and constituting part of the plant family Proteaceae. They are native to north eastern New South Wales and central and south eastern Queensland. The tree is commercially important for its fruit, the macadamia nuts (or simply "macadamia"). Other names include Queensland nut, bush nut, maroochi nut, bauple nut, and Hawaii nut. In Australian Aboriginal languages, the fruit is known by names such as "bauple", "gyndl", "jindilli", and "boombera". Previously, more species with disjunct distributions were named as members of this genus "Macadamia". Genetics and morphological studies more recently published in 2008 show they have separated from the genus "Macadamia", correlating less closely than thought from earlier morphological studies. The species previously named in the "Macadamia" genus may still be referred to overall by the descriptive, non-scientific name of macadamia; their disjunct distributions and current scientific names are:
Document 9: Arenga: Arenga is a genus of palms, native to Southeast Asia, southern China, New Guinea, and northern Australia. They are small to medium-sized palms, growing to 2–20 m tall, with pinnate leaves 2–12 m long. Arenga palms can grow in areas with little sunlight and relatively infertile soil.
Document 10: Freycinetia arborea: Freycinetia arborea, ʻ Ieʻ ie, is a densely branched, brittle, woody climber in the family Pandanaceae, endemic to the Pacific Islands. "ʻ Ieʻ ie" is found in moist forest on the Hawaiian, Marquesas, Austral, Society, and Cook Islands. It grows into the forest canopy, attaching itself to a host tree using aerial roots. It may also grow as a sprawling tangle on the forest floor. The shiny green leaves have pointed ends and are spiny on the lower side of the midrib and along the edges. Leaves measure 40 - long and 1 - wide, and are spirally arranged around the ends of branches. Flowers form on spike-like inflorescences at the end of branches, and are either staminate or pistillate. Staminate spikes are yellowish-white and up to 10 cm in length. Pistillate spikes are 3 - but elongate to 7.5 - once fruit are produced. Three to four spikes are surrounded by orange-salmon bracts. Fruit is 1 cm long and contains many 1.5 mm seeds. The bracts and fruit of the "ʻ ieʻ ie" were a favorite food of the "ʻ ōʻ ū" ("Psittirostra psittacea"), an extinct Hawaiian honeycreeper that was formerly a principal seed dispersal vector for plants with small seeded, fleshy fruits in low elevation forests. It is also a favored food of the "ʻ alalā" ("Corvus hawaiiensis"), which is currently extinct in the wild.
Document 11: Bulbophyllum abbrevilabium: Bulbophyllum abbrevilabium, also known as the Short Lipped Bulbophyllum, is a warm-growing species of orchid in the genus "Bulbophyllum". It is found in the Southeast Asian countries Thailand, Malaysia and Vietnam.
Document 12: Phyllanthus: Phyllanthus is the largest genus in the flowering plant family Phyllanthaceae. Estimates of the number species in this genus vary widely, from 750 to 1200. "Phyllanthus" has a remarkable diversity of growth forms including annual and perennial herbs, shrubs, climbers, floating aquatics, and pachycaulous succulents. Some have flattened leaflike stems called cladodes. It has a wide variety of floral morphologies and chromosome numbers and has one of the widest range of pollen types of any seed plant genus.
Document 13: Bulbophyllum: Bulbophyllum is the largest genus in the orchid family Orchidaceae. With more than 2,000 species, it is also one of the largest genera of flowering plants, exceeded only by "Astragalus". This genus is abbreviated in the trade journals as Bulb. It is found throughout most of the warmer parts of the world: Africa, southern Asia, Latin America, the West Indies, and various islands in the Indian and Pacific Oceans.
Document 14: Howea: Howea is a genus of two palms, "H. belmoreana" and "H. forsteriana", both endemic to Lord Howe Island, Australia. "H. forsteriana" in particular is commonly grown as an indoor plant in the Northern Hemisphere, and the two species form the mainstay of the island's palm seed industry and more importantly its trade in newly germinated seedlings. The palms are also cultivated on Norfolk Island, where seeds are produced for export.
Document 15: Hovea: Hovea (Purple pea) is a genus of perennial shrubs which are native to Australia. Species from this genus are occasionally cultivated as ornamental plants. The genus name honours Anton Pantaleon Hove, a Polish plant collector.
ground_truth: yes