Question: Which of the following is related to the east Asian Chaenomeles: Wulfenia or Pseudocydonia?

full_context: Document 1: Quince: The quince ( ; "Cydonia oblonga") is the sole member of the genus Cydonia in the family Rosaceae (which also contains apples and pears, among other fruits). It is a small deciduous tree that bears a pome fruit, similar in appearance to a pear, and bright golden-yellow when mature. Throughout history the cooked fruit has been used as food, but the tree is also grown for its attractive pale pink blossoms and other ornamental qualities.
Document 2: Chaenomeles: Chaenomeles is a genus of three species of deciduous spiny shrubs, usually 1–3 m tall, in the family Rosaceae. They are native to Japan, Korea, China, Bhutan, and Burma. (Burmese: ချဉ်စော်ကား ) These plants are related to the quince ("Cydonia oblonga") and the Chinese quince ("Pseudocydonia sinensis"), differing in the serrated leaves that lack fuzz, and in the flowers, borne in clusters, having deciduous sepals and styles that are connate at the base.
Document 3: Paulownia: Paulownia is a genus of six to 17 species (depending on taxonomic authority) of flowering plants in the family Paulowniaceae, related to and sometimes included in the Scrophulariaceae. They are present in much of China, south to northern Laos and Vietnam and are long cultivated elsewhere in eastern Asia, notably in Japan and Korea. They are deciduous trees 12 – tall, with large, heart-shaped leaves 15–40 cm across, arranged in opposite pairs on the stem. The flowers are produced in early spring on panicles 10–30 cm long, with a tubular purple corolla resembling a foxglove flower. The fruit is a dry capsule, containing thousands of minute seeds.
Document 4: Wulfenia: Wulfenia is a plant genus in the family Plantaginaceae. Named after Franz Xaver von Wulfen (1728–1805), it was first described in 1781 by Nikolaus Joseph von Jacquin.
Document 5: Plantaginaceae: Plantaginaceae, the plantain family, is a family of flowering plants in the order Lamiales. The type genus is "Plantago" L..
Document 6: Weldenia: Weldenia is a monotypic genus of flowering plant in the Commelinaceae family, first described in 1829. It has one single species: Weldenia candida, which grows originally in Mexico and Guatemala.
Document 7: Pseudocydonia: Pseudocydonia sinensis, the Chinese quince, is a deciduous or semi-evergreen tree in the family Rosaceae, native to eastern Asia in China, and the sole species in the genus Pseudocydonia. It is closely related to the east Asian genus "Chaenomeles", and is sometimes placed in "Chaenomeles" as "C. sinensis", but notable differences are the lack of thorns, and that the flowers are produced singly, not in clusters. The Chinese quince is also closely related to the European Quince genus "Cydonia"; notable differences include the serrated leaves, and lack of fuzz.
Document 8: Francoa sonchifolia: Francoa sonchifolia, commonly known as bridalwreath, is a plant species in the family Melianthaceae. It is endemic to Chile.
Document 9: Exochorda: Exochorda is a small genus of flowering plants in the family Rosaceae, native to China and central Asia (Turkestan). They are used as ornamental plants with the common name pearl bush, or pearlbush. Numerous species have been described on the basis of differing appearance and geographical separation, but a systematic study revealed that the different types are closely related and probably all descended from a single species that formerly had a wide distribution that has been fragmented by habitat loss. As a single species the correct name is "E. racemosa".
Document 10: Plantago rugelii: Plantago rugelii is a species of flowering plant in the plantain family, Plantaginaceae. It is native to North America, where it occurs in eastern Canada and the central and eastern United States. Its common names include American plantain, blackseed plantain, pale plantain, and Rugel's plantain. The generic name "Plantago" is from the Latin "planta" ("footprint") and the species name "rugelii" honors Ferdinand Ignatius Xavier Rugel (1806-1879), a German-born botanist and pharmacist.
Document 11: Francoa: Francoa is a genus of the Melianthaceae family which consists of herbs endemic to Chile. Plants may grow up to one metre high and produce basal clumps of round, deeply lobed, dark green, fuzzy leaves with winged leafstalks. Compact racemes of small, cup-shaped flowers, which are pink with red markings, appear in summer and early fall.
Document 12: Tree peony: Tree peony is the vernacular name for the section "Moutan" of the plant genus "Paeonia", or one of the species or cultivars belonging to this section. It consists of shrubs that have perennial aereal woody stems. Other peonies do not have perennial woody stems, but their stems die back after the growing season, to emerge again from buds just below the surface early in the following year. Tree peonies have been in culture in China for millennia, and it is likely that hybrids came into being in gardens, where different wild tree peony species were planted closely together. They are used in China both for medicine and as an ornamental, particularly the hybrids called "Paeonia suffruticosa". These hybrids in particular, but other tree peonies too are called 牡丹 (mu dan) in China.
Document 13: Chaenomeles: Chaenomeles is a genus of three species of deciduous spiny shrubs, usually 1–3 m tall, in the family Rosaceae. They are native to Japan, Korea, China, Bhutan, and Burma. (Burmese: ချဉ်စော်ကား ) These plants are related to the quince ("Cydonia oblonga") and the Chinese quince ("Pseudocydonia sinensis"), differing in the serrated leaves that lack fuzz, and in the flowers, borne in clusters, having deciduous sepals and styles that are connate at the base.
Document 14: Wulfenia carinthiaca: Wulfenia carinthiaca, commonly named wulfenia, is a plant of the plantain family. It is endemic to the Gartnerkofel mountain of the Carnic Alps at the Austro-Italian border.
Document 15: Wislizenia: Wislizenia is a genus of flowering plants containing three recognized species native to the southwestern United States and northern Mexico. Common names include spectacle fruit and jackass clover. Like genus "Cleome" and several relatives, "Wislizenia" has traditionally been included in the caper family, Capparaceae, but has more recently been moved to the new family Cleomaceae.
ground_truth: Pseudocydonia