What is "euphorbia cyparissias"

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.]

1. Received with gladness; admitted willingly to the house, entertainment, or company; as, a welcome visitor.

   When the glad soul is made Heaven's welcome guest.
   --Cowper.

2. Producing gladness; grateful; as, a welcome present; welcome news. ``O, welcome hour!''
   --Milton.

3. Free to have or enjoy gratuitously; as, you are welcome to the use of my library.

   Note: Welcome is used elliptically for you are welcome. ``Welcome, great monarch, to your own.''
   --Dryden.

   Welcome-to-our-house (Bot.), a kind of spurge ( Euphorbia Cyparissias).
   --Dr. Prior.

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.

Luteic \Lu*te"ic\, a. (Chem.)

1. Pertaining to, or derived from, weld ( Reseda luteola).

2. Pertaining to, or designating, an acid resembling luteolin, but obtained from the flowers of Euphorbia cyparissias.

Euphorbia cyparissias, the cypress spurge, is a species of plant in the genus Euphorbia. It is native to Europe and was introduced to North America in the 1860s as an ornamental plant.

Natural habitat types include dunes, pannes, coastal headlands and grasslands. In North America it is commonly found in the dry, gravelly soil of roadsides, pastures, and meadows. Cypress spurge thrives in open, disturbed areas.