Astelia alpina R.Br.

Species

Angiosperms > Asparagales > Asteliaceae > Astelia

Characteristics

Erect herb, forming dense cushions. Leaves linear to narrowly lanceolate, often with a silvery film on the upper surface and densely covered by silvery scales on the lower surface or glabrescent, often with red margins, 3-13(-40) cm by 3-7(-25) mm, with 1-3 major veins and several minor; leaf bases persistent and forming a silvery sheath round the rhizome. Male panicle densely covered by silvery scales, 2-8 cm long, with up to 3 simple branches subtended by bracts to 4(-12) cm long. Pedicels 3-6(-15) mm. Perianth segments green, pale yellow or brown, spreading or reflexed, 2½-4 mm long, scaly on the outer surface. Filaments 0.75-1.5 mm; anthers c. 0.5 mm long. Gynoecium sterile, green, 1.5-2.5 mm long. Female panicle similar to the male but shorter, 1-5 cm long, bracts to 3(-7) cm long. Pedicels 2-4(-10) mm. Perianth segments green, pale yellow or brown, erect, 6-7½(-9) mm long, glabrescent on the outer surface. Staminodes ¾-1.25 mm long. Gynoecium c. 6 mm long, ovoid; style not differentiated from ovary. Berry green, becoming bright red when ripe, ovoid or ellipsoid, c. 8-13 mm long. Seeds numerous, c. 2 mm ø.
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Mat-forming herbs with an indumentum of white-silvery scales on leaves, scapes and panicles; leaf bases and scapes with long, filiform, silky scales. Leaves acute, 5-40 cm long, green to grey-green above, shiny grey-green to silvery white below. Male panicle exserted, open, 10-50-flowered, 3-8 cm long; scape 3-12 cm long; spathes usually 3-7, the lowest 2 or 3 foliaceous; pedicels filiform, 2-12 mm long. Female panicle contracted, few-flowered, hidden among leaves; lowest spathes linear; pedicels absent or up to 8 mm long. Perianth greenish yellow. Male flowers: perianth segments lanceolate, 2-4 mm long; stamens 1.5-1.7 mm long; anthers less than 1 mm long. Female flowers: perianth segments narrowly lanceolate; staminodes 0.5-1.2 mm long; ovules 6-25. Berry oblong, smooth, red. Seeds smooth.
A tufted herb. It has stiff leaves which form a rosette giving it an appearance like pineapple. The leaves are long and narrow and have channels along them. They are about 20 cm long by 1-2 cm wide. The leaves are green above and silver underneath. It spreads by rhizomes. The flower are greenish and in spikes at the end of the stalk in the centre of the leaves. The fruit is a bright red round berry. They are about 12 mm long in the heart of the tuft. They contain 5 black shiny seeds. These are edible.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality dioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Alpine and subalpine grasslands forming tussocks to large solid cushions in bogs, sometimes forming almost pure communities in very wet areas (e.g. in Pindaunde Valley), 3225-4500 m. Fig. 21.
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It is a cool temperate alpine plant. It grows in bogs and on the edge of mountain pools. It suits hardiness zones 8-10. Tasmanian Herbarium.
Mountain moorlands, especially in boggy situations, in the alpine and sub-alpine zones.
Grows in bogs and wet places in herbfields in alpine and subalpine areas.
Light 4-9
Soil humidity 4-6
Soil texture 1-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 8-11

Usage

Uses social use
Edible fruits leaves
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seed or by division.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Astelia alpina unspecified picture

Distribution

Astelia alpina world distribution map, present in Australia and Papua New Guinea

Identifiers

LSID urn:lsid:ipni.org:names:531603-1
WFO ID wfo-0000638482
COL ID HNS6
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Astelia alpina Funckia alpina Astelia papuana f. minor

Lower taxons

Astelia alpina var. novae-hollandiae Astelia alpina var. alpina