The Collaborative International Dictionary of English v.0.48:

Luteic \Lu*te"ic\, a. (Chem.)
   (a) Pertaining to, or derived from, weld (Reseda luteola).
   (b) Pertaining to, or designating, an acid resembling
       luteolin, but obtained from the flowers of Euphorbia
       cyparissias.
       [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tithymal \Tith"y*mal\, n. [L. tithymalus a plant with a milklike
   sap, Gr. ?: cf. F. tithymale.] (Bot.)
   Any kind of spurge, esp. Euphorbia Cyparissias.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Welcome \Wel"come\, a. [OE. welcome, welcume, wilcume, AS.
   wilcuma a welcome guest, from wil-, as a prefix, akin to
   willa will + cuma a comer, fr. cuman to come; hence,
   properly, one who comes so as to please another's will; cf.
   Icel. velkominn welcome, G. willkommen. See Will, n., and
   Come.]
   [1913 Webster]
   1. Received with gladness; admitted willingly to the house,
      entertainment, or company; as, a welcome visitor.
      [1913 Webster]

            When the glad soul is made Heaven's welcome guest.
                                                  --Cowper.
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   2. Producing gladness; grateful; as, a welcome present;
      welcome news. "O, welcome hour!" --Milton.
      [1913 Webster]

   3. Free to have or enjoy gratuitously; as, you are welcome to
      the use of my library.
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   Note: Welcome is used elliptically for you are welcome.
         "Welcome, great monarch, to your own." --Dryden.
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   Welcome-to-our-house (Bot.), a kind of spurge (Euphorbia
      Cyparissias). --Dr. Prior.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Euphorbia cyparissias
    n 1: Old World perennial having foliage resembling cypress;
         naturalized as a weed in the United States [syn: cypress
         spurge, Euphorbia cyparissias]