Assertion: garden dahlia | /r/HasProperty | treated as the cultigen
Facets:
value: horticulturally
type: MANNER
value: usually
type: TEMPORAL
Source sentences:
text: Horticulturally the garden dahlia is usually treated as the cultigen D. variabilis Hort., which while being responsible for thousands of cultivars has an obscure taxonomic status (see also Cultivation).