Named for Danbury, Connecticut, U.S, where it was first discovered by Charles Upham Shephard in 1839.
ຊື່ຂອງມັນມາຈາກ Danbury, Connecticut, ສະຫະລັດ, ບ່ອນທີ່ມັນຖືກຄົ້ນພົບຄັ້ງທໍາອິດໃນ 1839 ໂດຍ Charles Upham Shephard.