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Archontophoenix alexandrae
| Family Name: | Arecaceae (Palmae) |
| Synonyms: | Psychosperma alexandrae, Jessenia glazioviana, Ptycosperma alexandrae |
| Common Name: | Alexandra Palm, Northern Bangalow Palm, King Palm, Majestic Palm, Alexander Palm, 假槟榔 |
Archontophoenix alexandrae, commonly known as Alexander Palm, is a palm with solitary habit. It is endemic to Australia and can reach up to 30 m in its natural habitat.
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Name
Classifications and Characteristics
| Plant Division | Angiosperms (Flowering Seed Plants) (Monocotyledon) |
|---|---|
| Plant Growth Form | Palm (Solitary Habit) |
| Lifespan (in Singapore) | Perennial |
| Mode of Nutrition | Autotrophic |
| Maximum Height | 25 m |
| Maximum Plant Spread / Crown Width | 4.5 m |
Biogeography
| Native Distribution | Australia |
|---|---|
| Native Habitat | Terrestrial |
| Preferred Climate Zone | Tropical |
| Local Conservation Status | Non-native |
Description and Ethnobotany
| Growth Form | A tall, solitary, fast-growing palm with large, stiff, feather-shaped leaves, exuding a graceful and elegant appearance. |
|---|---|
| Trunk | Stem smooth, circularly marked with prominent leaf scars, light grey; trunk base usually swollen; crownshaft light green, but occasionally brownish. |
| Foliage | Fronds pinnate, 2 to 3 m long, unarmed, dark green above and silvery-white beneath. |
| Others - Plant Morphology | Flower: Inflorescences creamy white, arising below crownshaft. Fruit: Fruits round, 1 to 2 cm in diameter, bright red when ripen. |
| Cultivation | Prefers full sun, but also tolerable to partial shade. It favours more water than most palms do and likes well draining soils. Able to be withstand indoors to some degree of tolerance. Propagate by seeds, which germinate readily in 4 to 8 weeks. |
| Etymology | The genus epithet Archonotophoenix comes from the Greek as 'king' or 'chief', and 'date palm', and that all species in this genus share the common name king palm. The species epithet alexandrae honours Princess Alexandra of Denmark (1844 - 1925). |
Landscaping Features
| Landscape Uses | Suitable for Roadsides |
|---|
Plant Care and Propagation
| Light Preference | Full Sun |
|---|---|
| Water Preference | Moderate Water |
| Plant Growth Rate | Moderate |
Foliar
| Mature Foliage Colour(s) | Green, Silver / Grey |
|---|---|
| Leaf Area Index (LAI) for Green Plot Ratio | 2.5 (Palm - Solitary) |
Non - Foliar and Storage
| Trunk Type (Palm) | Solitary Habit, Aboveground |
|---|
Floral (Angiosperm)
| Flower Colour(s) | Cream / Off-White |
|---|
Fruit, Seed and Spore
| Mature Fruit Colour(s) | Red |
|---|
Image Repository
Others
| Master ID | 1293 |
|---|---|
| Species ID | 2586 |
| Flora Disclaimer | The information in this website has been compiled from reliable sources, such as reference works on medicinal plants. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Readers should always consult his/her physician before using or consuming a plant for medicinal purposes. |