Question: While Bursaria is a genus of large shrubs and small trees native to Australia, Lindera is a genus of about how many species mostly native to eastern Asia?

Context paragraphs:
Hydrangea: Hydrangea ( ; common names hydrangea or hortensia) is a genus of 70–75 species of flowering plants native to southern and eastern Asia (China, Japan, Korea, the Himalayas, and Indonesia) and the Americas.  By far the greatest species diversity is in eastern Asia, notably China, Japan, and Korea.  Most are shrubs 1 to 3 meters tall, but some are small trees, and others lianas reaching up to 30 m by climbing up trees.  They can be either deciduous or evergreen, though the widely cultivated temperate species are all deciduous.

Lindera: Lindera is a genus of about 80-100 species of flowering plants in the family Lauraceae, mostly native to eastern Asia but with three species in eastern North America.  The species are shrubs and small trees; common names include spicewood, spicebush, and Benjamin bush.

Euonymus: Euonymus , often called spindle or spindle tree, is a genus of flowering plants in the staff vine family, Celastraceae.  It comprises about 130 species of deciduous and evergreen shrubs and small trees.  They are mostly native to East Asia, extending to the Himalayas, and they are also distributed in Europe, Australasia, North America, and Madagascar.  50 species are endemic to China.

Cleyera: Cleyera is a plant genus consisting of 18 species of tender, evergreen shrubs to small trees, mostly native to Mexico and Central America, and one from Eastern Asia.  In the APG III system it is placed in the family Pentaphylacaceae.

Pterostyrax: Pterostyrax, the epaulette tree, is a small genus of four species of deciduous large shrubs or small trees in the family Styracaceae, native to eastern Asia in China and Japan.  They grow 4 - tall, with alternate, simple ovate leaves 6 - long and 4 - broad.  The flowers are white, produced in dense panicles 8 - long.  The fruit is an oblong dry drupe, with longitudinal ribs or narrow wings (the wings are absent in the related genus "Styrax", whence the name "Pterostyrax", "winged styrax").

Waratah: Waratah ("Telopea") is an Australian-endemic genus of five species of large shrubs or small trees, native to the southeastern parts of Australia (New South Wales, Victoria and Tasmania).  The most well-known species in this genus is "Telopea speciosissima", which has bright red flowers and is the NSW state emblem.  The waratah is a member of the plant family Proteaceae, a family of flowering plants distributed in the Southern Hemisphere.  The key diagnostic feature of Proteaceae is the inflorescence, which is often very large, brightly coloured and showy, consisting of many small flowers densely packed into a compact head or spike.  Species of waratah boast such inflorescences ranging from 6–15 cm in diameter with a basal ring of coloured bracts.  The leaves are spirally arranged, 10–20 cm long and 2–3 cm broad with entire or serrated margins.  The name "waratah" comes from the Eora Aboriginal people, the original inhabitants of the Sydney area.

Carissa: Carissa is a genus of shrubs or small trees native to tropical and subtropical regions of Africa, Australia and Asia.  Until recently about 100 species were listed, but most of them have been relegated to the status of synonyms or assigned to other genera, such as "Acokanthera".

Emerald ash borer: Agrilus planipennis, commonly known as the emerald ash borer, is a green buprestid or jewel beetle native to northeastern Asia that feeds on ash species.  Females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years.  In its native range, it is typically found at low densities and does not cause significant damage to trees native to the area.  Outside its native range, it is an invasive species and is highly destructive to ash trees native to northwest Europe and North America.  Prior to being found in North America, very little was known about emerald ash borer in its native range; this has resulted in much of the research on its biology being focused in North America.  Local governments in North America are attempting to control it by monitoring its spread, diversifying tree species, insecticides, and biological control.

Bursaria: Bursaria is a genus of large shrubs and small trees which are native to Australia.  The genus was first described by Antonio Cavanilles in 1797, with his description of the type species "B. spinosa".  The name is derived from the Latin word "bursa" (purse) which relates to the shape of its seed capsules.

Styrax: Storax or snowbell is the common names of Styrax, a genus of about 130 species of large shrubs or small trees in the family Styracaceae, mostly native to warm temperate to tropical regions of the Northern Hemisphere, with the majority in eastern and southeastern Asia, but also crossing the equator in South America.  The resin obtained from the tree is called storax or benzoin (not to be confused with the "Liquidambar" storax balsam).

Supporting paragraphs: Lindera Bursaria
Answer: 80-100