Assertion: lignin's group | /r/HasProperty | to lesser extent
Facets:
value: in members of the cycadophyta
type: OTHER
Source sentences:
text: Although secondary xylem is also found in members of the gymnosperm groups Gnetophyta and Ginkgophyta and to a lesser extent in members of the Cycadophyta, the two main groups in which secondary xylem can be found are: