SPIRÆA (Lat., from Gk. σπειραία, speiraia, meadow-sweet, from σπεῖρα, speira, coil, twist, spire; so called from the sliape of the follicles). A large genus of herbs and low deciduous shrubs of the natural order Rosaceæ, natives of the Northern Hemisphere. Dropwort (Spiræa filipendula) and meadow-sweet or queen of the meadow (Spiræa ulmaria) are European species. Two other species are shown on the accompanying plate. Many species are cultivated in shrubberies for their flowers.
SPIRÆA, ETC.
| 1 | 
|
2 | 
|
| 3 | 
|
4 | 
|
| 1. HARDHACK (Spiræa tomentosa). | 3. SHADBUSH (Amelanchier Canadensis). | |
| 2. WILLOW-LEAVED SPIRÆA (Spiræa salicifolia). | 4. SAXIFRAGE (Saxifraga Virginiensis). |