Here's why:
* Her Appearance: Pearl is described as having an unconventional beauty, more akin to nature than conventional standards. Her beauty is compared to the wildflowers that grow freely and abundantly.
* Her Spirit: Her wild, free spirit matches the imagery of wildflowers, suggesting a natural, untamed quality.
This description emphasizes Pearl's unique nature and her connection to both the natural world and the unconventional circumstances of her birth.