vivid appearance of spring crocus (crocus vernus)

flower nature plant wildflower grass green leaf meadow sunlight yellow blossom autumn petal prairie field woodland vivid appearance spring crocus vernus commonly perennial iris family iridaceae native alpine regions europe earliest flowers bloom features slender grasslike leaves vibrant gobletshaped range colors including purple white three petals sepals look alike collectively tepals thriving welldrained soil preferring sunny partially shaded areas cultivated gardens early blooms ability naturalize lawns meadows