Alnus formosana
Alnus formosana, the Formosan alder, is a species of alder endemic to Taiwan.[1] It is a medium-sized tree, up to 20 metres (66 ft) in height.[2]
| Formosan alder | |
|---|---|
 | |
| Leaves and female infructescences | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fagales |
| Family: | Betulaceae |
| Genus: | Alnus |
| Subgenus: | Alnus subg. Clethropsis |
| Species: | A. formosana |
| Binomial name | |
| Alnus formosana | |
| Synonyms | |
| |
Description
The formosan alder is a trees up to 20 meters in height with dark gray-brown bark. The petiole is 1.2-2.2 cm, slender; leaves elliptic or oblong-lanceolate, rarely ovate-oblong, 6-12 × 2–5 cm, hairy in the axils of lateral veins beneath, almost hairless above, rounded or broadly cuneate base, irregularly minutely serrated margin, acuminate or acute apex; lateral veins 6 or 7 on each side of the midrib. It has one female inflorescence, or 2-4 in a cluster, ellipsoid, 1-2.5 cm; peduncle 3–5 mm.[2]
Form
Bark
Leaves
Distribution and habitat
It is found in Taiwan. It is a common species growing on riverbanks from near sea level to 2,900 metres (9,500 ft).[2]
Ecology
Alnus formosana flowers between May–June, fruiting between July–September.[2]
References
- "Alnus formosana (Burkill) Makino". Plants of the World Online. Royal Botanical Gardens Kew. Retrieved 5 January 2019.
- Pei-chun Li & Alexei K. Skvortsov. "Alnus formosana". Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 10 September 2012.