blossom blossoms countless Evergreen candytuft flower flowering plant flowers groundcover many plant plants shrub spring structure structures subshrub texture textures white white blossoms Goldenrod mimosa Mustard plant yellow alyssum biome branch branches bush bushes environmental fern ferns Ferns and horsetails foliage forest garden grass green landscaping large leaf leaves life nature Ostrich fern summer Terrestrial plant tree vascular plant vegetation