Assertion: chestnut's seed | /r/HasProperty | maryland sea grant
Facets:
Source sentences:
text: Life history: each T. natans plant has 15 - 20 rosettes; each rosette can generate up to 20 seeds (Maryland Sea Grant 2012); seeds overwinter in the benthic sediments and germinate the following spring; seeds remain viable for up to 12 years (Swearingen et al. 2002).