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Electronic Flora of South Australia species Fact Sheet

Family: Amaranthaceae
Amaranthus retroflexus

Citation: L., Sp. Pl. 991 (1753).

Synonymy: Not Applicable

Common name: Redroot amaranth.

Description:
Erect stout pubescent or partly woolly annual to c. 1 m high; roots reddish; leaves ovate to elliptic, 3-10 cm long (incl. petiole), often reddish.

Flowers greenish, in cylindrical axillary spikes to c. 15 mm thick and also forming a dense bristly terminal crowded many-branched panicle; bracts and bracteoles spinescent, ovate, 3-6 mm long and twice as long as the perianth; perianth-segments 5, linear or oblong, mucronate, truncate to obtuse or emarginate, 2-3 mm long; stamens 5; style branches erect.

Fruit rugulose, shorter than the perianth, circumsciss.

image of FSA1_Amaranthus_ret.jpg Amaranthus retroflexus
Image source: fig 180b in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).

Published illustration: Cunningham et al. (1982) Plants of western New South Wales, p. 284.

Distribution:  S.Aust.: GT, EP, NL, YP, SL, SE.   W.Aust.; N.S.W.; Vic.; Tas.   Native to North America.

Conservation status: naturalised

Flowering time: Jan. — May.


SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: No text

Author: Not yet available


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