close-up of vibrant red callistemon flowering spike with green foliage and colorful garden background in bright sunlight

horticulture biodiversity callistemon bottlebrush landscaping environment background ornamental decorative vegetation wildflower flowering myrtaceae australia ecosystem exoticism colorful sunlight blooming tropical backyard closeup vibrant foliage outdoor biology stamens ecology species garden bright flower detail leaves native exotic spring summer floral botany pollen growth season spike green bloom macro shrub plant flora lush red