ring-porous

[ ring-pawr-uh s, -pohr- ]

/ ˈrɪŋˈpɔr əs, -ˈpoʊr- /

having annual rings marked by a conspicuous band of large pores in wood formed in spring.

Compare diffuse-porous.

Origin of ring-porous

First recorded in 1900–05

A wood with its large pores collected into one row or in a single band is said to be ring-porous.

Studies of Trees |Jacob Joshua Levison
Ring-porous woods—Pores numerous, usually visible on cross-section without magnifier.

Wood and Forest |William Noyes
Ring-porous woods, in which the pores appear (in a cross-section) in concentric rings, as in chestnut, ash and elm.

Wood and Forest |William Noyes
The wood is ring-porous, that is, the inner edge of the yearly growth ring has a row of large pores.

American Forest Trees |Henry H. Gibson

That would represent the ring-porous woods, and the large tubes would be called vessels, or trache.

Wood and Forest |William Noyes