It is a species, either P. obovata or P. mascula. Not sure which. Found part of the label. It is P mascula ssp. ross something.
The Lesser Celandine There is a Flower, the Lesser Celandine, That shrinks, like many more, from cold and rain; And, the first moment that the sun may shine, Bright as the sun himself, 'tis out again! When hailstones have been falling, swarm on swarm, Or blasts the green field and the trees distressed, Oft have I seen it muffled up from harm, In close self-shelter, like a Thing at rest. But lately, one rough day, this Flower I passed, And recognized it, though an altered form, Now standing forth an offering to the blast, And buffeted at will by rain and storm. I stopped, and said, with inly-muttered voice, "It doth not love the shower, nor seek the cold: This neither is its courage nor its choice, But its necessity in being old. "The sunshine may not cheer it, nor the dew; It cannot help itself in its decay; Stiff in its members, withered, changed of hue." And, in my spleen, I smiled that it was grey. To be a Prodigal's Favourite -then, worse truth, A Miser's Pensioner -behold our lot! O Man, that from thy fair and shining youth Age might but take the things Youth needed not! William Wordsworth (1770-1850)
The common Sanguinaria canadensis, bloodroot, is blooming. It's a tiny thing, about 10 cm tall, but all flowers are welcome in spring. The blooms usually last for a day or two, but they've bloomed for several days now due to the cold weather. The double one is later, and the blooms last longer. Even though it doesn't bloom for long the foliage that comes after blooming is very decorative. I like them a lot and I've managed to make a fairly big patch of both now. They must move as soon as I've managed to make a new woodland for them, and I'll probably take the opportunity to divide them and sell some. They're sought-after but hard to come by in the nurseries.