Cardiocrinum cordatum in a Maryland woodland
Nathan Lange (Thu, 20 Nov 2014 13:36:23 PST)

From the PBS Wiki:
"Generations of writers have repeated the incorrect notion that these
plants are monocarpic. They are not monocarpic. Yes, the flowering
stems die after seed set; in fact, they die whether seed is set or
not. But so do the fruiting stems of tulips, lilies, fritillaries and
a host of other similar plants. The perennial stem (i.e. the basal
plate) and its offset bulbs live on from year to year."

This is consistent with my observations of cultivated plants and the
performance of a plant I purchased from the UC Berkeley Botanical
Garden in 2009 which consistently flowers every other year while
growing in a 2 gallon pot.

Nathan