Swallowwort \Swal"low*wort`\, n. (Bot.)
   (a) See Celandine.
   (b) A poisonous plant (Vincetoxicum officinale) of the Milkweed family, at one time used in medicine; -- also called white swallowwort.

African swallowwort, a plant of the genus Stapelia.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Celandine \Cel"an*dine\ (s[e^]l"[a^]n*d[imac]n), n. [OE. celidoine, OF. celidoine, F. ch['e]lidoine, fr. L. chelidonia (sc. herba), fr. chelidonius pertaining to the swallow, Gr. chelido`nios, fr. chelidw`n the swallow, akin to L. hirundo a swallow.]

(Bot.) A perennial herbaceous plant (Chelidonium majus) of the poppy family, with yellow flowers. It is used as a medicine in jaundice, etc., and its acrid saffron-colored juice is used to cure warts and the itch; -- called also greater celandine and swallowwort.

Lasser celandine, the pilewort (Ranunculus Ficaria).

Source: Webster's Revised Unabridged Dictionary (1913)