The mottled tuberose (Manfreda variegata) belongs to Agavaceae (the Agave family). It is a perennial herb that is native to Texas in the United States and eastern Mexico. This herb grows on rocky slopes, open or dense oak woods, and it can reach 50-100 cm in height. The leaves are linear-lanceolate, erect-arching, succulent, sometimes spotted with elongate brown or green markings. The yellowish green or brownish, funnelform-campanulate flowers bloom in the racemes from Feburuary to June.