If they advertise boxwood and substitute it with anything else, it IS false advertisement. If they charge more money for a kit version which has a choice of wood above the quality of their standard kit, AND honestly describe which wood that is, such that you, buyers are properly informed, then the price is justified. And I would probably buy such a kit based on that material as provided, because that's how I roll.
Kurt
In which case - the kit mfg should be required to provide something that they probably have not known themselves up to this time - the true genus and species of the wood that they are supplying.
Jaager
If the wood has an accepted name as Boxwood then it ca be sold as Boxwood. Boxwood has become a trade name for any wood that resembles true Buxus. Yale University department of forestry lists substitutes for true boxwood.
my brother was a Dendrologist and worked as an Arborist after i left commercial arts we started a tree service company when he passed away i was given his library.
so here is every know Buxus that grows in China, what you find common among all of them is there are no trees they are all small shrubs rarely getting larger than a 4 inch diameter bole (trunk) and that is rare. What is a "shrub" a woody plant which is smaller than a tree and has several main stems arising at or near the ground. this does not sound like you will get a commercial supply of sheet stock 4 or more inches wide and clear of defects. That takes a "tree" size plant not a shrub.
For the past 100 or so years true Buxus was not used commercially for anything the supply is not there. a long time ago there was a supply of Buxus used as rulers and other stuff but that supply is long gone.
Buxus austro-yunnanensis is an evergreen shrub
Buxus bodinieri is a broadleaf evergreen shrub
Buxus cephalantha It is a subshrub or shrub
Buxus hainanensis cultivated ornamentally for low hedges
Buxus harlandii commonly called Harland boxwood or Japanese box, is a small, evergreen shrub in the family Buxaceae
Buxus hebecarpa is a species of small to medium‑sized shrub in the family Buxaceae
Buxus henryi commonly called Henry’s box or Henry’s boxwood, is a slow‑growing evergreen shrub or small tree in the family Buxaceae
Buxus ichangensis is a species of evergreen shrub in the family Buxaceae, commonly known as Ichang boxwood
Buxus latistyla is a species of evergreen shrub in the family Buxaceae, commonly known as boxwood or wide‑column yellowthorn
Buxus linearifolia also known as linearleaf boxwood, linear-leaved boxwood, or linear-leaved box, is a small evergreen shrub in the family Buxaceae
Buxus megistophylla also called large‑leafed boxwood or greater‑leaf boxwood, is a slow‑growing, evergreen shrub in the family Buxaceae and genus Buxus
Buxus microphylla Dwarf evergreen shrub or small tree, typically 1–3 m tall, sometimes up to 4 m. Leaves are small commonly grown as an ornamental shrub for hedges, topiary, and containers
Buxus mollicula is a small, evergreen shrub it is also part of the boxwood genus, which is valued for landscaping, hedges, and bonsai.
Buxus myrica is a subtropical evergreen boxwood shrub slow‑growing, dense, and suitable for hedging
Buxus pubiramea It is a member of the genus Buxus, which contains about 70 species of slow‑growing, evergreen shrubs and small trees
Buxus rugulosa is highly valued in bonsai culture is an evergreen shrub in the family Buxaceae, commonly known as wrinkled‑leaf boxwood or rugose boxwood
Buxus sinica is commonly known as Korean boxwood, Chinese box, or small-leaved box.
Buxus sinica is a broadleaf evergreen shrub This species is widely used in formal gardens, hedges
Buxus stenophylla is a small to medium-sized evergreen shrub
Buxus wallichiana is a slow‑growing, evergreen shrub or small tree hill forests at 1,200–3,000 m altitude; is both an ecologically important Himalayan forest species and a plant with a long history of traditional medicinal use, valued for its resilience, dense wood, and alkaloid content