This tree is noted for (1) its non-peeling chalky white bark with dark chevron trunk patches appearing below each branch base and (2) its long-pointed triangular green leaves. Its relatively fine texture sets it apart from other landscape plants with less refined foliage. Betula populifolia. River Birch (Betula nigra) trees grow quickly since they’re often positioned near swampy land. Common name: Gray Birch . Betula populifolia ‘Whitespire’ is a cultivar of grey birch that was selected and introduced in 1983 by Edward R. Hasselkus of the University of Wisconsin-Madison. Other common names:Gray Birch. Performs best in cool northern climates where summer temperatures rarely exceed 75 degrees F. and where shallow root systems are generally covered with snow throughout the winter. 'Whitespire Sr.' Nursery Availability 1 - 35 of 35. Although the grey birch exhibits a smooth, thin white bark which can easily be confused with that of the paper birch … Whitespire Senior Birch is a deciduous tree with a distinctive and refined pyramidal form. This white birch was selected at the Arboretum of the University of Wisconsin in Madison because it showed more Bronze Birch Borer resistance than most other white barked birches. Paper Birch (Betula papyrifera) trees, meanwhile, have bark on them as thin as paper. Plants have rough-warty twigs.Genus name is the Latin name for birch. Its relatively fine texture sets it apart from other landscape plants with less refined foliage. Pronunciation: BET-u-la pop-u-li-FO-li-a. 35 Search Results. Whitespire Birch is a deciduous tree with a distinctive and refined pyramidal form. CT, MA, ME, NH, RI, VT. Woodlands, swamps, wetland margins, forests, regenerating fields. Landscape Attributes: Whitespire Birch is a deciduous tree with a distinctive and refined pyramidal form. It is now assigned to Betula populifolia and the plants are often sold under the name 'Whitespire Senior' to avoid confusion. Betula populifolia Marsh. Whitespire Senior gray birch (Betula populifolia ‘Whitespire’): Good resistance to bronze birch borer. It most often appears in a multi-trunked form, but also grows with a single trunk. Selected at the University of Wisconsin, this handsome upright growing 20-40' x 20' t ... A selection that is resistant to the bronze birch borer is 'Whitespire Senior'. Birch leaf miner may also cause significant problems. Betula populifolia 'Whitespire Sr.' Betula populifolia 'Whitespire Sr.' Scientific Name: Betula L. (Betulaceae) populifolia Marsh. Leaves are glossy, dark green turning yellowish-green in fall. This tree is noted for (1) its non-peeling chalky white bark with dark chevron trunk patches appearing b… Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition. This tree reportedly has some resistance to the borer. Triangular leaves (each to 3” long) are double-toothed and shiny with tapered tips. Tiny monoecious flowers appear in early spring in separate catkins on the same tree: yellowish-brown male flowers in single catkins (to 4” long) at the branch tips and greenish female flowers in smaller, upright catkins (to 1/2” long). AKA Betula populifolia 'Whitespire Senior' Upright, pyramidal habit; Chalky-white bark does not peel; Triangular leaves are dark green in the summer, turning yellow in the fall; Male and female flowers, lead to cylindrical catkins, persisting into winter; Bloom Time: Spring Beautiful glossy deep burgundy red leaf color and cinnamon to white exfoliating bark puts this Birch tree in a class of it's own. It thrives in cool northern summers, but does poorly in the heat and humidity of St. Louis. This species of birch grows poorly and is generally short-lived in the St. Louis climate. Gray Birch (Betula populifolia) or “Whitespire” trees have an unmistakable chalky white bark. Betula populifolia 'Whitespire' Join the RHS today and get 12 months for the price of 9. It is native primarily from Southeastern Canada to Virginia, with a scattering of plants extending westward to Illinois. The apex is acuminate and the margin slightly lobed or doubly serrate. 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