Source : Webster's Revised Unabridged Dictionary (1913)

Bloodflower \Blood"flow`er\, n. [From the color of the flower.]
   (Bot.)
   A genus of bulbous plants, natives of Southern Africa, named
   {H[ae]manthus}, of the Amaryllis family. The juice of {H.
   toxicarius} is used by the Hottentots to poison their arrows.

Source : WordNet®

Haemanthus
     n : genus of African deciduous or evergreen bulbous herbs: blood
         lilies [syn: {genus Haemanthus}]