Oxydendron arboreum
| Sourwood | |
|---|---|
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| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Ericales |
| Family: | Ericaceae |
| Subfamily: | Vaccinioideae |
| Tribe: |
Oxydendreae Cox |
| Genus: |
Oxydendrum DC. |
| Species: | O. arboreum |
| Binomial name | |
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Oxydendrum arboreum (L.) DC. |
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Sourwood or sorrel tree, Oxydendrum arboreum, /ˌɒksᵻˈdɛndrəm ɑːrˈbɔəriəm/ is the sole species in the genus Oxydendrum, in the family Ericaceae. It is native to eastern North America, from southern Pennsylvania south to northwest Florida and west to southern Illinois; it is most common in the lower chain of the Appalachian Mountains. The tree is frequently seen as a component of oak-heath forests.
Sourwood is a small tree or large shrub, growing to 10–20 m (33–66 ft) tall with a trunk up to 50 cm (20 in) diameter. Occasionally on extremely productive sites, this species can reach heights in excess of 30 meters and 60 cm diameter. The leaves are alternately arranged, deciduous, 8–20 cm (3.1–7.9 in) long and 4–9 cm (1.6–3.5 in) broad, with a finely serrated margin; they are dark green in summer, but turn vivid red in fall. The flowers are white, bell-shaped, 6–9 mm ( 1/4 to 1/3 inch) long, produced on 15–25 cm (5.9–9.8 in) long panicles. The fruit is a small woody capsule. The roots are shallow, and the tree grows best when there is little root competition; it also requires acidic soils for successful growth. The leaves can be chewed (but should not be swallowed) to help alleviate a dry-feeling mouth.
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Wikipedia