joint-fir

from The Century Dictionary.

• noun A general name of the species of the natural order Gnetaceæ-(which see).
• noun A name of the taxoid conifers.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Bot.) A genus (Ephedra) of leafless shrubs, with the stems conspicuously jointed; -- called also shrubby horsetail. There are about thirty species, of which two or three are found from Texas to California.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun jointed and nearly leafless desert shrub having reduced scalelike leaves and reddish fleshy seeds