Orchard or Field? Sea Buckthorn, Seabuckthorn or Seaberry? Tree or bush?

I have been calling my newly planted plot of Hippophae rhamnoides an "orchard". Is this right?  
Orchard - An area of land devoted to the cultivation of trees.
Trees -    a) A perennial woody plant having a main trunk and usual a distinct crown
              b) A plant or shrub resembling a tree in form or size.
Vineyard- cultivated with grape vines
Field -     A cultivated expanse of land, especially devoted to a particular crop.

Vineyard is out, Seaberries are definitely not grapes. Everything else seems to be acceptable - by definition.  The Sea Buckthorn plant can be grown as a shrub or in a tree form.  Wild populations lean towards the shrub form while cultivated plants are more tree form.  I think I got it right.  Orchard it is!

The other thing is how to refer to the plant.  Hippophae ramnoides L. is the Latin name.  The plant is spelled either Seabuckthorn or Sea Buckthorn.  From here on, I am only using "Sea Buckthorn".  

The last oddity I have no solution to.  

• Apple trees produce apple not Appberries
• Blueberry bushes produce blueberries
• Plum trees produce plums not plumberries
• Cranberry plants produce cranberries
• Cherry trees produce cherries, not cherryberries
• Sea Buckthorn Trees  produce Sea Buckthorn berries - OK
• Sea Buckthorn "trees" produce Seaberries. -- Still the winner. 

I'm not sure why I am looking for consistency in the plant world.  It really isn't a human trait either.

Update on the Sea Buckthorn Orchard:

Three weeks after the first plant went into the ground, the news is good from Seboeis, Maine.  After repairing one of the bridges to the property and thwarting 2 beavers who decided it was a good idea to block culverts, flooding the road.  I can tell you -  out of the 440 plants every one of them is growing, budding out nicely!  I have read stories of a 20 to 50 percent loss with this type of planting.  It is early and, as with any type of farming, the weather can have a large impact on the how well the plants survive.  Over the past 3 weeks there has been over 5 inches of rain here and only 3 days with temperatures over 80F degrees (26C).  Nights have been cool.  

There is no evidence of moose or deer damage.  Rodents like rabbits, mice, and voles have not bothered the plants either.  

In the orchard, there has developed a swampy spot.  The water is literally flowing slowly out of the hill underpinning the upper field and making the feet of about 8 plants very wet or totally under water.  I think this is from all the rain and leftover spring melts.  I don't remember any standing water all of last year.  

Her are some photos of the new buds on the plants.

before and after pruning