It is named for Danbury, Connecticut, United States, where it was first discovered in 1839 by Charles Upham Shephard.
ຊື່ຂອງມັນມາຈາກ Danbury, Connecticut, ສະຫະລັດ, ບ່ອນທີ່ມັນຖືກຄົ້ນພົບຄັ້ງທໍາອິດໃນ 1839 ໂດຍ Charles Upham Shephard.