Question: Which genus contains more species, Philadelphus or Sarracenia?

full_context: Document 1: Filipendula: Filipendula is a genus of 12 species of perennial herbaceous flowering plants in the family Rosaceae, native to the temperate regions of the Northern Hemisphere. Well-known species include meadowsweet ("Filipendula ulmaria") and dropwort ("Filipendula vulgaris"), both native to Europe, and queen-of-the-forest ("Filipendula occidentalis") and queen-of-the-prairie ("Filipendula rubra"), native to North America.
Document 2: Carnivorous plants of North America: The North American Continent is home to a wide variety of carnivorous plant species. Species from seven genera are native to the continent, and three of these genera are found nowhere else on the planet.
Document 3: Choisya: Choisya is a small genus of aromatic evergreen shrubs in the rue family, Rutaceae. Members of the genus are commonly known as Mexican orange or mock orange due to the similarity of their flowers with those of the closely related orange, both in shape and scent. They are native to southern North America, from Arizona, New Mexico, Texas and south through most of Mexico. In its generic name Humboldt and Bonpland honoured Swiss botanist Jacques Denis Choisy (1799–1859).
Document 4: North American azaleas: North American azaleas are flowering shrubs in the genus "Rhododendron", section "Pentanthera", subsection Pentanthera, so named because they all have five stamens. Most are in the United States, with one species found in Canada and one being found in Mexico. North American azaleas are commonly confused with azaleas of Asian origin, the evergreen azaleas. North American azaleas are deciduous and produce two types of buds. One is a larger and produces about 20 flowers while the other bud produces a leafy shoot. The flower color, fragrance, and number of stamens vary among species.
Document 5: Sarracenia: Sarracenia ( or ) is a genus comprising 8 to 11 species of North American pitcher plants, commonly called trumpet pitchers. The genus belongs to the family Sarraceniaceae, which also contain the closely allied genera "Darlingtonia" and "Heliamphora".
Document 6: Campsis: Campsis (trumpet creeper, trumpet vine) is a genus of flowering plants in the family Bignoniaceae, native to woodland in China and North America. It consists of two species, both of which are vigorous deciduous perennial climbers, clinging by aerial roots, and producing large trumpet-shaped flowers in the summer. They are hardy but require the shelter of a warm wall in full sun.
Document 7: Heliamphora: The genus Heliamphora ( or ; Greek: "helos" "marsh" and "amphoreus" "amphora") contains 23 species of pitcher plants endemic to South America. The species are collectively known as sun pitchers, based on the mistaken notion that the "heli" of "Heliamphora" is from the Greek "helios", meaning "sun". In fact, the name derives from "helos", meaning marsh, so a more accurate translation of their scientific name would be marsh pitcher plants. Species in the genus "Heliamphora" are carnivorous plants that consist of a modified leaf form that is fused into a tubular shape. They have evolved mechanisms to attract, trap, and kill insects; and control the amount of water in the pitcher. At least one species ("H. tatei") produces its own proteolytic enzymes that allows it to digest its prey without the help of symbiotic bacteria.
Document 8: Daphne (plant): Daphne ( ; Greek: Δάφνη, meaning "laurel") is a genus of between 50 and 95 species of deciduous and evergreen shrubs in the family Thymelaeaceae, native to Asia, Europe and north Africa. They are noted for their scented flowers and poisonous berries.
Document 9: Datura: Datura is a genus of nine species of poisonous vespertine flowering plants belonging to the family Solanaceae. They are commonly known as daturas, but also known as devil's trumpets, not to be confused with angel's trumpets, its closely related genus "Brugmansia". They are also sometimes called moonflowers, jimsonweed, devil's weed, hell's bells, thorn-apple, and many more. Its precise and natural distribution is uncertain, owing to its extensive cultivation and naturalization throughout the temperate and tropical regions of the globe. Its distribution within the Americas and North Africa, however, is most likely restricted to the United States and Mexico and Southern Canada in North America, and Tunisia in Africa, where the highest species diversity occurs.
Document 10: Salicornia: Salicornia is a genus of succulent, halophyte (salt tolerant) flowering plants in the family Amaranthaceae that grow in salt marshes, on beaches, and among mangroves. "Salicornia" species are native to North America, Europe, South Africa, and South Asia. Common names for the genus include glasswort, pickleweed, picklegrass, and marsh samphire; these common names are also used for some species not in "Salicornia". The main European species is often eaten, called marsh samphire in Britain, and the main North American species is occasionally sold in grocery stores or appears on restaurant menus, usually as <nowiki>'</nowiki>sea beans<nowiki>'</nowiki> or samphire greens or sea asparagus .
Document 11: Philadelphus lewisii: Philadelphus lewisii (Lewis' mock-orange)—also known as Gordon's mockorange, Indian arrowwood, wild mockorange (though this can apply to any species in the genus) and syringa—a name that usually refers to the unrelated lilacs.—is a deciduous shrub native to western North America, from northwestern California in the Sierra Nevada, north to southern British Columbia, and east to Idaho and Montana. It is widespread but not very common, usually appearing as an individual plant amongst other species. It was first collected by scientist and explorer Meriwether Lewis in 1806 during the Lewis and Clark expedition and the "Philadelphus lewisii" is named after him.
Document 12: Philadelphus: Philadelphus ( ) (mock-orange) is a genus of about 60 species of shrubs from 3-20 ft (1-6 m) tall, native to North America, Central America, Asia and (locally) in southeast Europe.
Document 13: 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 14: Nepenthes: Nepenthes ( ), also known as tropical pitcher plants, is a genus of carnivorous plants in the monotypic family Nepenthaceae. The genus comprises roughly 150 species, and numerous natural and many cultivated hybrids. They are mostly liana-forming plants of the Old World tropics, ranging from South China, Indonesia, Malaysia and the Philippines; westward to Madagascar (two species) and the Seychelles (one); southward to Australia (three) and New Caledonia (one); and northward to India (one) and Sri Lanka (one). The greatest diversity occurs on Borneo, Sumatra, and the Philippines, with many endemic species. Many are plants of hot, humid, lowland areas, but the majority are tropical montane plants, receiving warm days but cool to cold, humid nights year round. A few are considered tropical alpine, with cool days and nights near freezing. The name "monkey cups" refers to the fact that monkeys have been observed drinking rainwater from these plants.
Document 15: Phillyrea: Phillyrea is a genus of two species of flowering plants in the family Oleaceae, native to the Mediterranean region, and naturalized in the Canary Islands and Madeira.
ground_truth: Philadelphus