Amaranthus spinosus Linnaeus. Common name: Spiny Amaranth, Quelite Espinoso. Phenology: Jul-Oct. Habitat: Fields, gardens, roadsides, barnyards, pastures. Distribution: Native of tropical America.
Origin/Endemic status: Native
Synonymy ⓘ: = Ar, Bah, C, Can, F, FNA4, G, GrPl, Il, K4, Mex, Mo2, NcTx, NE, NY, Ok, Pa, RAB, S, S13, Tat, Tn, Tx, Va, W, WH3, Bayón (2015), Costea & Tardif (2003b). Basionym: Amaranthus spinosus L. 1753
Links to other floras: = Amaranthus spinosus - FNA4
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACU
- Eastern Mountains and Piedmont: FACU
- Great Plains: FACU
- Midwest: FACU
- Northcentral & Northeast: FACU
Heliophily ⓘ: 9
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Horticultural Information
Intro: Erect or ascending annual of fields, gardens, roadsides, barnyards and pastures. Native of tropical America.
Stems: Stems bushy-branched, ridged, reddish and smooth.
Leaves: Leaves alternate, long-petiolate, broadly oval, smooth, with 2 long spines at each leaf node.
Inforescence:
Flowers: Flowers in separate clusters by sex: female in clusters in leaf axils, male in elongated, nodding spikes at top of stem; greenish-white, minute, consisting of 5 tepals and 3 shorter bracts.
Fruits: Fruit a blackish-brown seed surrounded by a membrane.
Comments:
Height: 3-4 ft.
plant sale text:
bloom table text:
description: Erect or ascending annual of fields, gardens, roadsides, barnyards and pastures. Native of tropical America.
stems: Stems bushy-branched, ridged, reddish and smooth.
leaves: Leaves alternate, long-petiolate, broadly oval, smooth, with 2 long spines at each leaf node.
inflorescence:
flowers: Flowers in separate clusters by sex: female in clusters in leaf axils, male in elongated, nodding spikes at top of stem; greenish-white, minute, consisting of 5 tepals and 3 shorter bracts.
fruits: Fruit a blackish-brown seed surrounded by a membrane.
comments:
cultural notes:
germination code:
native range:
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