The cherry trees here are named after the place. Omura Park holds about 2,000 trees, and roughly 300 of them are Omura-zakura, according to Omura city. The flowers carry at least sixty petals and as many as two hundred, and where an ordinary cherry has five sepals this one has ten. In 1967 it was designated a national natural monument under the name of the Omura-zakura at Omura shrine.

A second named variety grows in the same park.

Kushima-zakura was named in 1947 and made a prefectural natural monument, and it takes its name from Kushima, the castle ground the park is laid out on. Its flowers run from thirty-six petals to fifty-six, averaging forty-five. Two of the varieties here are therefore named for the town and for the castle site, which is a different relationship from a park that plants whatever is available.

The order of flowering is what makes that visible. About 1,500 Somei-yoshino open from late March into early April, and only when those are finished do the Omura-zakura and the Kushima-zakura come out, carrying the season into the middle of April. The named trees, the ones the designations attach to, are the last to flower and the last to fall. A visitor who arrives in the week that counts as cherry season almost everywhere else in the country will see the common variety in full and miss the two that this park is named in.