 | Birch-leaved Pear Tree - Pyrus betulaefolia [2] Rose Family: Rosaceae Height: 25 feet / USDA zones hardy to 5 [Cirrus Home] [Tree Encyclopedia] [Trees Alphabetic Table of Contents] [Family Rosaceae Table of Contents] |
 Leaflets are a shining mid-green with a finely serrate margin |
| Pyrus communis pear cultivars are self-incompatible, hence in these orchards inter-fertile cultivars have to be planted. Parry (1976) and Kurennoi (1985) screened the following Pyrus species as potential pollinators: Pyrus amygdaliformis, P. longipes, P. nivalis, P. salicifolia P. betulaefolia, and P. syriaca. At the INRA Angers Research Unit research into pollinators for pear varieties was initiated in 1990. A selection from Pyrus betulaefolia, the P337-41 clone, was subsequently selected as the best candidate. This genotype exhibits very abundant flowering, and a regular and extended blooming period. The latter covers the blooming time for early to late pear varieties. The clone P337-41 originating from Pyrus betulaefolia is recommended as a pollinator for the main varieties grown in France: ‘Williams’, ‘Conférence’ and ‘Doyenné du Comice’. [1] |
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Birch-leaved Pear Tree Morton Arboretum acc. 38-85-2, from planting, is 24 years old [2]
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Birch-leaved Pear Tree - Pyrus betulaefolia May 4, near Chicago
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