Magnolia × loebneri
"Magnolia × loebneri [...] is a hybrid of two Magnolia species, the Japanese Magnolia kobus and M. stellata [...] crossed by Garteninspektor Max Löbner of Pillnitz, Germany, shortly before World War I; [..] it first flowered in 1917." en.wikipedia.org/wiki/Magnolia_%C3%97_loebneri
"Magnolia kobus [...] is a species of Magnolia native to Japan (Kyushu, Honshu, and Hokkaido) and Korea [...] and occasionally cultivated in temperate areas. [...] It is a deciduous, small to tall tree which has a slow rate of growth but can reach 8–15 m (25–50 ft) in height and up to 10 m (35 ft) in spread." en.wikipedia.org/wiki/Magnolia_kobus
"Magnolia stellata, sometimes called the star magnolia, is a slow-growing shrub or small tree native to Japan." en.wikipedia.org/wiki/Magnolia_stellata
Magnolia × loebneri
"Magnolia × loebneri [...] is a hybrid of two Magnolia species, the Japanese Magnolia kobus and M. stellata [...] crossed by Garteninspektor Max Löbner of Pillnitz, Germany, shortly before World War I; [..] it first flowered in 1917." en.wikipedia.org/wiki/Magnolia_%C3%97_loebneri
"Magnolia kobus [...] is a species of Magnolia native to Japan (Kyushu, Honshu, and Hokkaido) and Korea [...] and occasionally cultivated in temperate areas. [...] It is a deciduous, small to tall tree which has a slow rate of growth but can reach 8–15 m (25–50 ft) in height and up to 10 m (35 ft) in spread." en.wikipedia.org/wiki/Magnolia_kobus
"Magnolia stellata, sometimes called the star magnolia, is a slow-growing shrub or small tree native to Japan." en.wikipedia.org/wiki/Magnolia_stellata