Tetrapanax
| Tetrapanax papyrifer | |
|---|---|
 | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Apiales |
| Family: | Araliaceae |
| Subfamily: | Aralioideae |
| Genus: | Tetrapanax (K.Koch) K.Koch |
| Species: | T. papyrifer |
| Binomial name | |
| Tetrapanax papyrifer (Hook.) K.Koch | |
Tetrapanax papyrifer (rice-paper plant,[1] or 通草—tong cao) is an evergreen shrub in the family Araliaceae, the sole species in the genus Tetrapanax.[2] The specific epithet is frequently misspelled as "papyriferum", "papyriferus", or "papyrifera". It is endemic to Taiwan, but widely cultivated in East Asia and sometimes in other tropical regions as well. [3] The species was once included in the genus Fatsia as Fatsia papyrifera.[4]
A second species, Tetrapanax tibetanus, is now regarded as a synonym of Merrilliopanax alpinus.[5]
Description
It grows to 3-7 m tall, with usually unbranched stems 2 cm diameter bearing a rosette of large leaves at the top (superficially similar to a palm crown). The leaves are carried on 40-60 cm petioles, the leaf blade orbicular, 30-50 cm across, deeply palmately lobed with 5-11 primary lobes, the central lobes larger and Y-forked near the end. It spreads extensively by sprouts from the root system underground. The inflorescence is a large panicle of hemispherical to globular umbels near the end of the stem. The flowers have 4 or 5 small white petals. The fruit is a small drupe.
Uses
Tetrapanax papyrifer is used in traditional Chinese medicine and as an ornamental. The pith from the stem is used to make a substance commonly known as rice paper,[4] but more properly termed pith paper.
Gallery
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Tetrapanax papyrifer at the botanical garden of Villa Durazzo-Pallavicini, Genova
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Leaf of Tetrapanax papyrifer
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Inflorescence of Tetrapanax papyrifer
References
- ↑ "Tetrapanax papyrifer". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 9 December 2015.
- ↑ Qibai Xiang & Porter P. Lowry. "Tetrapanax". Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 16 July 2014.
- ↑ George W. Staples and Derral R. Herbst. 2005. "A Tropical Garden Flora". Bishop Museum Press: Honolulu, HI, USA.
- 1 2 Qibai Xiang & Porter P. Lowry. "Tetrapanax papyrifer". Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 16 July 2014.
- ↑ Qibai Xiang & Porter P. Lowry. "Merrilliopanax alpinus". Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 16 July 2014.