Montana Field Guide

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Montana Field Guides

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- Kingdom - Plants - Plantae
  - Division - Flowering Plants - Anthophyta
    - Class - Dicots - Dicotyledoneae
      - Order - Caryophyllales - Caryophyllales
        
        Family - Amaranth (Pigweed) Family - Amaranthaceae
        
        Species - Sandhills Amaranth - Amaranthus arenicola

Sandhills Amaranth - Amaranthus arenicola

Likely Non-native Species

Global Rank: G4G5
State Rank: SNA
(see State Rank Reason below)
C-value: 1

Agency Status
USFWS:
USFS:
BLM:

External Links

State Rank Reason (see State Rank above)

Native to parts of North America, though it may be introduced into Montana. Seldom collected in the state.

General Description

Dioecious. Stems erect, 50–100 cm with glabrous foliage. Leaf blade oblanceolate, 1–8 cm long, longer than petiole. Inflorescence terminal and axillary spikes or panicles; bracts ovate-attenuate, 1–3 mm long. Flowers: sepals 5, 2–3 mm long with dark midveins; stamens 5. Utricle ca. 1.5 mm long, shorter than sepals (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments

In Missoula and Phillips counties; most of temperate U.S. (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database

Number of Observations: 1

(Click on the following maps and charts to see full sized version) Map Help and Descriptions

Relative Density

Recency

(Observations spanning multiple months or years are excluded from time charts)

Habitat

Stream banks, agricultural fields, roadsides; plains, valleys (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References

Literature Cited AboveLegend: View Online Publication
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
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Citation for data on this website:
Sandhills Amaranth — Amaranthus arenicola. Montana Field Guide. Montana Natural Heritage Program. Retrieved on April 25, 2024, from https://FieldGuide.mt.gov/speciesDetail.aspx?elcode=PDAMA04040