Chilacayote
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Cucurbita ficifolia is a species of squash, grown for its edible seeds, fruit, and greens. It has common names including black seed squash, chilacayote, cidra, fig-leaf gourd, and Malabar gourd. Compared to other domesticated species in its genus, investigators have noted that samples of C. ficifolia from throughout its range are relatively similar to one other in morphology and genetic composition. Variations do occur in fruit and seed color, some isozymes, and photoperiod sensitivity.
This species is grown widely from Argentina and Chile to Mexico. It is also cultivated in regions of the world including India, Japan, Korea, China, the Philippines, Ethiopia, Kenya, Tanzania, and Angola.
No named agricultural cultivars have been recognized. Research suggests that C. ficifolia represents an earlier evolutionary branch than the other major cultivated Cucurbita species, but biosystematic investigations have established that C. ficifolia is not as distinct from the other domesticated Cucurbita species as early botanists had concluded. It has been noted to form interspecific hybrids with Cucurbita maxima, Cucurbita moschata, and Cucurbita pepo. Interspecific hybrids have generally been infertile beyond the first generation unless techniques such as embryo cultivation are used.
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