Tiny monoecious flowers appear in early spring in separate catkins on the same tree: yellowish-brown male flowers in drooping catkins (to 3” long) and greenish female flowers in smaller, upright catkins (to 1 1/4” long). Bloom Description: Yellowish-brown (male) and green (female). Birches are considered a "pioneer" species and, thus, tends to grow quickly when young. Cancer: Ingredients linked to cancer in government, industry or academic studies or assessments. N.C. It most often appears in a multi-trunked form, but also grows with a single trunk. Problems. Cancer: Ingredients linked to cancer in government, industry or academic studies or … ~'2 We reported the isolation and structural determination of two lignan rhamnosides I and four p-hydroxyphenyl derivatives 2 from the leaves. Betula platyphylla var. platyphylla (Sukachev) Lindquist B. platyphylla, in its typical form, is found on the mainland of N.E. Betula Platyphylla Japonica Bark Extract is an extract of the bark of Betula platyphyllajaponica. Cooperative Extension, which staffs local offices in all 100 counties and with the Eastern Band of Cherokee Indians. It thrives in cool northern summers, but does poorly in the heat and humidity of St. Louis. It needs little pruning, but if necessary, you can prune during the dormant season. ; B. japonica (Miq.) ; B. verrucosa var. Tiny monoecious flowers appear in early spring in separate catkins on the same tree: yellowish-brown male flowers in drooping catkins (to 3 inches long) and greenish female flowers in smaller, upright catkins (to 1 1/4 inches long). In cool northern climates, this white birch is an excellent landscape tree that displays a graceful form and mixes well with evergreens. Cancer . Betula platyphylla, commonly called Japanese white birch, is a medium to large sized tree noted for its white bark, thin spreading branches and slightly pendant branchlets. Diseases, Insects, and Other Plant Problems: Birches can become stressed by summer heat and humidity. : 203N. From this variety, typical B. platyphylla differs chiefly in its leaves, which are glabrous beneath except for axillary tufts, and dotted with glands. Betula platyphylla 'Japonica' Japanese White Birch . 10L Planter Bag. Do not prune in winter or spring when the sap is running because it will bleed. Betula platyphylla, commonly called white birch or sometimes Asian white birch, is native to Manchuria, Korea and Japan. Deciduous. japonica, or Japanese White Birch, is a cultivar of Betula platyphylla with a pyramidal form, white bark that does not exfoliate, a central leader and thin, spreading, slightly pendant branches. long (7 cm), with some golden-yellow fall color before they shed for the winter. Greenish female flowers are followed by drooping cone-like fruits containing numerous small winged seeds that typically mature in late summer. Species: platyphylla. Betula platyphylla var. It contains several medically active constituents including triterpenoids and flavonoids and is antifungal, anti-inflammatory and tonic. 'Whitespire' was originally named as a cultivar of Betula platyphylla var. japonica Hara) to obtain basic information on their chemical components so we could utilize the leaves as a herbal tea. This species of birch grows poorly and is generally short-lived in the St. Louis climate. It typically occurs in both dry and wet soils. Cancer: Ingredients linked to cancer in government, industry or academic studies or assessments. Weakened birches become very vulnerable to the bronze birch borer which, in the St. Louis area, typically attack and kills trees that are stressed by summer heat and humidity. Female flowers are followed by drooping cone-like fruits containing numerous small winged seeds that typically mature in late summer. 60ft (18m) Price: £2.80 per packet of seeds. If stressed, birches can become vulnerable to the bronze birch borer which infects and kills trees. Asia as far west as Mongolia and south to N. China.It is unlikely to be a success in the British Isles, where it is represented by its Japanese variety. NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to Betula Platyphylla Japonica Bark Extract is an extract of the bark of Betula platyphyllajaponica. (Betula platyphylla Sukatchev var. Thin, spreading branches. Although white birches have some susceptibility to aphids, birch leaf miner, birch skeletonizer and dieback, these problems are usually considered to be somewhat minor in comparison to the birch borer. Lovely graceful specimen tree, slightly pendulous branches. japonica Disclaimer: The NCBI taxonomy database is not an authoritative source for nomenclature or classification - please consult the relevant scientific literature for the most reliable information. Classification; Reviews (0) Growing Advice; Seeds per Packet; Genus: Betula. Birches are best grown in moist, acidic, sandy or … Clear: Quantity. They have three flights from February-November in the deep south and March-September in the north. Cancer . japonica when introduced into commerce in 1983, but that designation was subsequently changed when it was determined 'Whitespire' was in fact a gray birch. Japanese Gray Birch grows best in medium to wet, well-drained, sandy or rocky loams in full sun to part shade. form a strategic partnership called N.C. Young twigs have resinous glands. Birches are best grown in moist, acidic, sandy or rocky, well-drained loams in full sun to part shade. Similar to Silver Birch, but has bigger leaves and distinct white bark on the trunk. This plant supports the larvae of Eastern Tiger Swallowtail (Papilo glaucus). japonica Miq. Nakai; B. alba subsp. ADD TO WISHLIST ADD TO BASKET. It is native primarily from Southeastern Canada to Virginia, with a scattering of plants extending westward to Illinois. japonica (Miq.) Young twigs have resinous glands.Genus name is the Latin name for birch.Specific epithet means broad-leaved. Vibrant autumn colours. Betula is Latin for birch and describes a genus of about 60 species of deciduous trees and shrubs found in many gardens and landscapes throughout the northern hemisphere.

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