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Orache

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Orache photos
Scientific Name:Atriplex prostrata syn. (Atriplex hastata)
Plant of Orache
Plant of Orache
Photo: A J Brown

Other Common Name:

Hastate Orache

Status:

Native to Eurpoe, Asia and North America. Naturalised to all Australian southern States.

Plant Description:

Prostrate to ascending annual herb to 50 cm high. The hairless and stalked leaves are sometimes mealy (powdery) underneath. The older leaves are triangular, arrow-shaped or hastate (see photo) in shape, 1.5-7 cm long and 1-6 cm wide and with or without marginal teeth. Younger or upper leaves are triangular to ovate.

Male and female flowers are separate but on the same plant and in the same clusters. Fruit are covered by a pair of bracteoles which are triangular or ovate and 3-6 mm long.

Habitat:

Common in seasonally or permanently wet sites, often fringing saltmarsh vegetation and on saline soils. In older flora treatments, the name Atriplex prostrata was applied to Mat Saltbush, a rare Mallee plant, which is now called Atriplex pumilio.

RegionSalinity ClassWaterlogging Class
Central and Northern, Western, GippslandS0, S1, S2, S3W2, W3

Comments:

This species can be mistaken for the Australian species, Native Orache (Atriplex australascia), but differs mainly in the shape of its leaves. Native Orache normally has older leaves that taper toward the base and upper leaves that are commonly linear, rather than triangular or ovate.

Orache Photos

Branched stems of Orache
Branched stems of Orache
Photo: A J Brown
Leaves of Orache
Leaves of Orache
Photo: A J Brown

Hastate leaf of Orache
Hastate leaf of Orache
Photo: A J Brown

Orache upper leaves
Upper leaves of Orache
Photo: A J Brown

Orache flowering
Flowering plants of Orache
Photo: A J Brown

Orache flowers and fruit
Flowers and fruit of Orache
Photo: A J Brown

Orache flower-head
Orache flower-head
Photo: A J Brown