The Collaborative International Dictionary of English v.0.48:

Self-heal \Self`-heal"\, n. (Bot.)
   A blue-flowered labiate plant (Brunella vulgaris); the
   healall.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sicklewort \Sic"kle*wort`\, n. [AS. sicolwyrt.] (Bot.)
   (a) A plant of the genus Coronilla (Coronilla
       scorpioides); -- so named from its curved pods.
   (b) The healall (Brunella vulgaris).
       [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Healall \Heal"all`\ (-[add]l`), n. (Bot.)
   A common herb of the Mint family (Brunella vulgaris),
   destitute of active properties, but anciently thought to be a
   panacea.
   [1913 Webster]