Question: Which has more species, Aristolochia or Patrinia?
Context: Aristolochia serpentaria is a species of perennial flowering plant in the Aristolochiaceae (birthwort) family.  The species is commonly known as Virginia snakeroot and is native to eastern North America, from Connecticut to southern Michigan and south to Texas and Florida. Battus is a New World genus of butterflies that are usually found around pipevine (genus "Aristolochia") plants.  The caterpillars feed off the poisonous pipevines, making the insects poisonous themselves; they taste very bad to ward off predators.  Since birds avoid these butterflies, other swallowtail species mimic their coloration.  The common North American species are "Battus polydamas" and "Battus philenor". Aristolochia quangbinhensis (Vietnamese: "Phòng Kỷ Quảng Bình" ) is a endemic flora species in the "Aristolochia" genus. Aristolochia macrophylla, Dutchman's pipe or pipevine, is a vine native to the eastern United States.  "Aristolochia macrophylla" belongs to the Aristolochiaceae family of plants and is found primarily along the Cumberland Mountains and Blue Ridge Mountains in the eastern portion of the United States, as well as Ontario, Canada.  This species of plant has received considerable attention in the past few decades for the discovery of a potent compound called aristolochic acid, which has been the focus of debate due its harmful side effects. Aristolochia ( ) is a large plant genus with over 500 species that is the type genus of the family Aristolochiaceae.  Its members are commonly known as birthwort, pipevine or Dutchman's pipe and are widespread and occur in the most diverse climates.  Some species, like "A. utriformis" and "A. westlandii", are threatened with extinction. Patrinia is a genus of herbaceous plants in the honeysuckle family.  There are about 17 species native to grassy mountain habitats in China, Siberia and Japan.  These are unassuming clump-forming perennial plants having thin, erect stems with few leaves and bearing a terminal inflorescence with yellow or white flowers.  The use for this plant is to provide a flower through long hot summers. Parides anchises, the Anchises cattleheart, is a species of butterfly in the family Papilionidae native to the Americas.  It is common and not threatened.  The larvae feed on "Aristolochia" species including: "A. brazilsis", "A. bukuti", "A. colombiana", "A. cymbifera", "A. fimbriata", "A. inflata", "A. macroura", "A. odora", "A. ringens", and "A. triangularis". The Palawan birdwing or triangle birdwing ("Trogonoptera trojana") is a birdwing butterfly of the family Papilionidae.  It is endemic to Palawan in the Philippines.  It is one of only two species in its genus, the other being the more widespread Rajah Brooke's birdwing.  This species is included in CITES Appendix II, restricting international export to those who have been granted a permit.  The wingspan is approximately 18 - .  The species may be observed flying at any point during the year.  The larvae feed on "Aristolochia". Aristolochia longa, the long aristolochia or sarrasine, is a species of pipevine. Aristolochia boosii is a species of woody vine in the Aristolochiaceae plant family which is endemic to Trinidad and Tobago.  Known only from a few locations in southern Trinidad, the species was first collected by Julius Boos in 1977.  After determining that it was new to science, the species was described by Jacqueline Anne Panter in 1981 and named for its discoverer.
Answer: Aristolochia