Calabash (Lagenaria siceraria) is related to the pumpkin. But it's not a real pumpkin. The zucchini is indeed a pumpkin (Cucurbita pepo var. pepo). Pumpkins come in many shapes.
==Special Precautions of Calabash==
Like other members of the family Cucurbitaceae, gourds contain cucurbitacins that are known to be cytotoxic at a high concentration. The tetracyclic triterpenoid cucurbitacins present in fruits and vegetables of the cucumber family are responsible for the bitter taste, and could cause stomach ulcers. In extreme cases, people have died from drinking the juice of gourds.The toxic cases are usually due to the gourd being used to make juice, which the drinkers described as being unusually bitter.[20] In three of the lethal cases, the victims were diabetics in their 50s and 60s.In 2018, a healthy woman in her 40s was hospitalized for severe reactions after consuming the juice and died three days later from complications.
The plant is not normally toxic when eaten. The excessively bitter (and toxic) gourds are due to improper storage (temperature swings or high temperature) and over-ripening.
==References==
*Adhyaru-Majithia, Priya (13 March 2010). "Not all bitter veggies are good, they can kill you: Doctors". DNA. Bhaskar Group. Archived from the original on 26 June 2010. Retrieved 9 July 2010.