Hydrangea anomala var. petiolaris
hi-DRAN-je-a a-NOM-a-la pet-i-o-LA-ris
Native to (or naturalized in) Oregon:
- Deciduous vine, 60-80 ft (18-24 m), climbing, clinging by root-like holdfasts. Leaves opposite, simple, 5-10 cm, broad ovate to ovate oval, dark green above, lighter below. Flowers white, 4 petaled, in flat-topped clusters, outer flowers (sepals) sterile and showy (similar to Viburnum plicatum). The fruit is a small (~4 mm) dry urn-shaped capsule containing several winged seeds.
- Sun to part shade, requires rich, well-drained, moist soil (Dirr, 1998, p. 434, "The best vine!")
- Hardy to USDA Zone 4 Native to Japan and China, introduced 1865.
- Hydrangea: "waterjar", referring to its cup shaped fruit; anomala abnormal; petiolaris: conspicuous petioles
- Corvallis: Montessori School at northwest corner of Grant Ave. and 27th St. (2013)