Yucca is found only in a few upland areas at Quivira. Pioneers would make soap by rubbing pieces of the roots in water.

Soapweed yucca reproduces both by seed and by rhizomes (horizontal roots that extend out from the main plant). In general, moths are important pollinators for yucca plants. However the yucca moth, ironically, is a non-pollinating species of moth whose larvae eat the seeds of the yucca plant. Wood ants are important predators of the yucca moths.

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