Thank you both for your info.
Lin, I don't recall exactly what the flowers looked like but were definitely not like your first pic. They were a long stalk of small white flowers, so resembled more the second pic. Most of the dracaena varieties I've seen pics of have that thick woody stem which my plant does not, so not sure how that relates. I understand that Cast Iron Plant is a very slow grower; this plant modestly increases each year but is definitely not a rapid grower. So I guess still not sure what I have here, lol.
