Ptychosperma elegans Blume

Solitaire palm (en)

Species

Angiosperms > Arecales > Arecaceae > Ptychosperma

Characteristics

Solitary palm to 12 m tall; trunk to 12 cm diam. Leaves 6–11, to 3.3 m long; leaf sheath to 65 cm long, green with moderate whitish tomentum, and dark scales aggregated at apex and on base of petiole. Pinnae 30–60 each side of rachis, regularly arranged, to 84 cm long, dark green adaxially, lighter green abaxially. Inflorescence to 70 cm long; axes green; rachillae erect to semi-pendulous; rameal bracts reduced to scars. Staminate flower to 8 mm long, to 4 mm diam.; stamens 12–22. Fruit ovoid to globose, to 20 mm long, to 12 mm diam., red. Seed to 11 mm long, to 7.5 mm diam.; endosperm ruminate.
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A solitary palm which grows to 10 m high. The trunk is slender and grey. It is 7-20 cm across. The trunk has rings along it. The crown-shaft is whitish-green. The leaves are bright green and arching. The leaves are compound. They are 1-2.5 m long. There are 40-60 leaflets which are 50-60 cm long. They are smooth. The fruit is 15-20 mm long. They occur in bunches below the crown-shaft. The fruit are bright red. There is one seed which is about 15 mm long. The flesh of the fruit is edible.
Stems solitary. 2n = 32.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) 0.07 - 0.2
Mature height (meter) 10.0 - 12.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

A tropical plant. It grows in the rainforest in NE Queensland, in Australia. They will grow in the subtropics. It needs well drained soil. It can grow in part shade or full sun. It suits seasonally moist and dry climates. In the Cairns Botanical Gardens. In Townsville palmetum. They are sensitive to frost. It suits plant hardiness zones 10-11.
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Tropical rainforests. Often by rivers, near coastal swamps and mangroves, it can also be found at elevations up to 600 metres in gullies or even on ridges in the wetter areas.
Grows on various soil types in rainforest, littoral forest and coastal scrub, 0–900 m alt. 
Light 4-6
Soil humidity 3-7
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

The young unexpanded leaves are eaten as a vegetable. The flesh of the red fruit is edible.
Uses environmental use material
Edible fruits shoots
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants are grown from fresh seed. Seed is produced in large quantities and grows readily. Seed germinate in 5-6 months. They need protection from direct sunlight for the first 2-4 years. Seedlings transplant easily.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -7
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Ptychosperma elegans leaf picture by Kate Sturges (cc-by-sa)

Distribution

Ptychosperma elegans world distribution map, present in Australia, Brazil, Dominica, and United States of America

Conservation status

Ptychosperma elegans threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:669378-1
WFO ID wfo-0000288776
COL ID 78N96
BDTFX ID -
INPN ID 447769
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Archontophoenix veitchii Ptychosperma capitis-yorki Ptychosperma seaforthii Ptychosperma wendlandianum Saguaster elegans Archontophoenix jardinei Pinanga smithii Ptychosperma elegans Actinophloeus capitis-yorki Archontophoenix elegans Saguaster capitis-yorki Seaforthia elegans Saguaster capitis-yorkis Ptychosperma elegans var. sphaerocarpum Ptychosperma wendlandianum var. sphaerocarpum Ptychosperma jardinei