from The Century Dictionary.
- noun A genus of tall, perennial herbs of the family Rosaceæ, often referred to the genus Spiræa, with numerous small, diœcious flowers.
Sorry, no etymologies found.
In the next to the last photo the aruncus dioicus looks like firework sparklers.
The flowers in a cut state are quaint and graceful, and the leaves are even more useful; these may be cut with long stalks and stood in vases in twos and threes without any other dressing, or, when desired, a few large flowers may be added for a change, such as a panicle of _Spiræa aruncus_, a large sunflower, or a spike or two of gladioli.
On the edge of the forest, the following genera, etc. were noticed -- Spiraea bella and S. aruncus, * Berberis asiatica, Swertia, grasses common,