Atriplex muelleri Benth.

Mueller's saltbush (en), Arroche (fr)

Species

Angiosperms > Caryophyllales > Amaranthaceae > Atriplex

Characteristics

Herb, annual or perhaps longer-living, sometimes slightly woody, ascending to erect, up to about 0.7 m. high, grey to grey-green, more or less mealy, often densely so.. Leaves in outline spathulate to elliptic or rhombic-ovate, mostly 1–6 (–7) cm. long, 0.5–4 cm. wide, mostly obtuse to subtruncate at apex, gradually tapering at base, normally with 1–4 coarse teeth on each margin.. Flowers clustered in leaf-axils, upper clusters male or mixed, lower female.. Fruiting bracteoles normally almost sessile, their basal connate part 1–2 mm. long obconical or campanulate and becoming thick, hard and pale; free apical part of each bracteole semicircular to triangular in outline, 2–3 mm. long, 2.5–4.5 mm. wide, acute or subacute at apex, with normally 1–4 little teeth on each margin; bracteoles in centre smooth or venose, not at all tuberculate or muricate.
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Spreading to erect herb branching from base, to 30 cm high. Leaves thin, broadly obovoid, apex rounded, base cuneate and passing into petiole ½ length of lamina, in all 15–30 mm long, margin undulate to sinuately lobed, upper surface glabrescent, lower surface scaly. Male flowers clustered in terminal axils. Female flowers in scattered axillary clusters. Fruiting bracteoles sessile or almost so, bluntly deltoid to circular, swollen, hard, smooth, c. 3 mm long and wide at apex, connate except at the rounded apex, valves herbaceous, forming a narrow denticulate margin around apex of bracteole; appendages absent. Seed circular, radicle lateral, erect.
Mostly perennial, monoecious, dwarf shrub, 0.3-1.0 m high, grey-to white-squamous. Leaves 20-70 x 10-40 mm, deltoid-oval or elliptic, base concave, apex blunt, sinuately lobed. Male flowers in ± terminal clusters. Female flowers in 2-8-flowered clusters lower down. Fruiting bracts 2-4 x 2.5-3.5 mm, roundish oval or roundish deltoid in outline, lower half inflated becoming woody or spongy, upper half with 1-4 shallow or sharp teeth on both margins.
A spreading shrub. It grows 0.3-1 m high and spreads 1-2 m wide. It grows each year from seed. The branches are rigid. The leaves are 5 cm long and wedge shaped. They have lobes or irregular teeth along the edge. The upper surface is green and they are mealy white underneath. The flowers are small. Male flowers are round and in the upper axils of leaves. The female flowers occur in clusters in the lower axils. They are both on the same plant.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention
Sexuality monoecy
Pollination -
Spread -
Mature width (meter) 1.0 - 2.0
Mature height (meter) 0.3 - 0.85
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c4

Environment

It grows in temperate places. It grows in inland Australia. It is drought and frost tolerant. They need fairly well drained soils.
Light 7-9
Soil humidity 1-3
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses animal food forage poison vertebrate poison
Edible leaves
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown by seed or cuttings.
Mode -
Germination duration (days) 12 - 21
Germination temperacture (C°) 10 - 14
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Atriplex muelleri habit picture by Rina Jeger (cc-by-sa)

Leaf

Atriplex muelleri leaf picture by Rina Jeger (cc-by-sa)

Distribution

Atriplex muelleri world distribution map, present in Australia, Israel, Jordan, United States of America, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:163988-1
WFO ID wfo-0000556309
COL ID 5W8F8
BDTFX ID 8335
INPN ID 85093
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Atriplex muelleri