Boyd’s Bible Dictionary:
(encumberer). A large plant family, covering the melon, pumpkin, squash, calabash (Jonah 4:6-10). A poisonous apple or cucumber (2 Kings 4:39-41).
“Gourd (Qiquyon)” From Concise Bible Dictionary:
This was some gourd of rapid growth that afforded Jonah needed shelter (Jonah 4:6-10). The margin of the RV calls it the Palma Christi. Others identify it with the Lagenaria vulgaris, which is often seen in Palestine as affording shelter. It grows rapidly, but rapidly withers, as by the gnawing of its bark by a snail. Its fruit, emptied of seeds, is used for bottles.
Lagenaria Vulgaris
“Gourd, Wild (Paqquoth)” From Concise Bible Dictionary:
In a time of dearth a lap-full of gourds from a wild vine was gathered to provide a meal for Elisha and the sons of the prophets (2 Kings 4:39). Some suppose this to have been the wild cucumber, the leaves of which resemble those of the vine, but have a bitter poisonous taste. Others think the poisonous Colocynth, the Colocynthis agri, to be referred to. The ancient versions support this. A kindred word is translated “knops” in 1 Kings 6:18 (“gourds,” margin), as ornaments in the temple, for which the fruit of the Colocynth would be a graceful model.
Strong’s Dictionary of Hebrew Words:
Transliteration:
qiyqayown
Meaning:
perhaps from 7006; the gourd (as nauseous)