Could be, yes. Lewisia can look a bit different in cultivation than in the wild, so that's a challenge (for me).
I saw some similar plants labelled Senecio at a corner store yesterday, was sure I would remember the cultivar name, but didn't. They were just that size and planted just that way. And then I didn't remember which thread had the question anyway. 'Himalaya'? That looks a little different from what I remember. I'll go back.
What I saw is labelled Senecio 'Kilimanjaro', but it doesn't have the spade shape at the leaf tips like the one in question. I'm including photos anyway. The front of the label did spell it Senecio. So I withdraw that suggestion.
Your photos definitely look like Lewisia to me. All Lewisias are native to the west coast of North America and several species have long, narrow leaves like the plant pictured. Among those however, only L. columbiana is relatively easy to buy. Where did your plant originate? If it is Lewisia columbiana, it could be L. columbiana var. columbiana, var. rupicola or var. wallowensis. They are fairly easy to tell apart when in bloom. The fact that your plant has much shinier leaves than any of those 3 varieties make me suspect that it could be a cultivar such as Lewisia 'Trevosia' (L. columbiana x L. cotyledon var. howellii). Lewisia: Bitterroot | Portland Nursery The photo is Lewisia columbiana var. columbiana in my garden today - leaves definitely not as long or shiny as photo posted by tehee.
