Question: Which American plant species, Liquidambar or Claytonia, is also native to northeastern Asia?
Context: Medeola virginiana, Indian cucumber-root (or Indian cucumber, or Indian cucumber root) is an eastern North American plant species in the lily family, Liliaceae.  It is the only currently recognized plant species in the genus Medeola.  Indian cucumber-root grows in the understory of forests.  The plant bears edible rhizomes that have a mild cucumber-like flavor. Chrysosplenium wrightii, the Bering Sea water-carpet, is a plant species native to northwestern North America and northeastern Asia.  It grows on tundra and along stream banks at elevations up to 2300 m in British Columbia, Yukon, Alaska, the Kamchatka Peninsula in Russia, and in eastern Siberia.  The plant was first described in 1878 as being from Japan.  This was based on material collected along the "Ochotsk Sea," presumably either Sakhalin Island or one of the Kuril Islands, parts of Japan at the time but now in the Russian Federation. Galium kamtschaticum, known as Kamchatka bedstraw or boreal bedstraw, is a plant species in the Rubiaceae, named for the Kamchatka Peninsula on the Pacific Coast of Russia.  The species is native to northeastern Asia and northern North America: Russia (Kamchatka, Sakhalin Island, and Kuril Islands), northeastern China (Heilongjiang, Jilin), Korea, Japan, Alaska (including the Aleutians), Canada (Yukon, Northwest Territories, British Columbia, Quebec, Ontario, Newfoundland, Nova Scotia, New Brunswick), and the northern part of the contiguous United States (Maine, New Hampshire, Vermont, New York, Michigan, Washington). Hieracium robinsonii, Robinson's hawkweed, is a North American plant species in the dandelion tribe within the sunflower family.  It is native to eastern Canada and the northeastern United States (Québec, New Brunswick, Nova Scotia, Maine, and New Hampshire).  There are reports of it formerly growing in Newfoundland, but it does not appear to grow there now. Flaveria bidentis, the coastal plain yellowtops, is a South American plant species of "yellowtops" within the sunflower family.  It is native to South America, and naturalized in many places (Mexico, Central America, the West Indies, the southeastern United States, Europe, Africa, Asia, etc.). Claytonia (spring beauty) is a genus of 26 species of flowering plants formerly included in Portulacaceae but now classified in the family Montiaceae, primarily native to North America, with a few species extending south to Guatemala in Central America, and northwest to northeastern Asia. Acer ginnala (Amur maple) is a plant species with woody stems native to northeastern Asia from easternmost Mongolia east to Korea and Japan, and north to the Russian Far East in the Amur River valley.  It is a small maple with deciduous leaves that is sometimes grown as a garden subject or boulevard tree. Liquidambar, commonly called sweetgum (sweet gum in the UK), gum, redgum, satin-walnut, or American storax, is the only genus in the flowering plant family Altingiaceae with 15 species.  They were formerly often treated in Hamamelidaceae. Solidago gigantea is a North American plant species in the sunflower family.  Its common names include tall goldenrod and giant goldenrod, in reference to its height of up to 2 m tall, rather large for the genus, smooth goldenrod and late goldenrod.  It is a widespread species known from most of non-arctic North America east of the Rocky Mountains.  It has been reported from every state and province from Alberta to Nova Scotia to Florida to Texas, and also from the state of Nuevo León in northeastern Mexico. Phyllachne is a genus of four cushion plant species in the family Stylidiaceae.  Of the four species, two are endemic to New Zealand, while "P. colensoi" is also native to Tasmania and "P. uliginosa" is entirely endemic to southern South America and is the only species in the Stylidiaceae native to the Americas.  The movement of "P. colensoi" to colonize Tasmania is a relatively recent move.  Molecular studies group "P. colensoi", "P. clavigera", and "P. rubra" together in one clade with "P. uliginosa" in the sister clade.  Based on molecular clock data of the "rbcL" gene, it is estimated that "P. uliginosa" last shared a common ancestor with the New Zealand clade about 6 million years ago.
Answer: Claytonia