Lobelia angulata Ferns and Allies The woody perennial species are

The woody perennial species are most often shrubs though there are some salvias that are trees

Acorus gramineus 'Licorice'

and more hummingbirds

via the US National Arboretum (USNA #39665)

It's been over a decade (2011)

Lobelia angulata Ferns and Allies The woody perennial species are(aka: Pratia angulata) We have really enjoyed this wonderful semi evergreen groundcover lobelia from New Zealand in our garden for decades. The zig zag black stems are clothed with tiny round leaves forming a nice 1" tall, ground hugging mat. The patch is topped with small white flowers from late spring through early summer great for the rock garden and very tolerant of moist conditions in full to part sun, where it's tolerant of light foot traffic