Montana Field Guide

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- Kingdom - Plants - Plantae
  - Division - Flowering Plants - Anthophyta
    - Class - Dicots - Dicotyledoneae
      - Order - Caryophyllales - Caryophyllales
        
        Family - Four-o-clock Family - Nyctaginaceae
        
        Species - Heartleaf Four-o'clock - Mirabilis nyctaginea

Heartleaf Four-o'clock - Mirabilis nyctaginea

Status Under Review
Native Species

Global Rank: G5
State Rank: SU
C-value: 2

Agency Status
USFWS:
USFS:
BLM:

External Links

General Description

Taprooted perennial herbs. Stems erect 35–60 cm, mostly glabrous with swollen nodes. Leaf blades ovate-lanceolate, glabrous, 4–8 cm long. Inflorescence terminal and axillary, openly cymose with umbellate clusters at branch tips; involucres 3-flowered, the bracts 5–10 mm long, light green, veiny. Flowers pink, ca. 4 mm long. Fruits pubescent, 4–6 mm long, 5-ribbed and warty (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments

Mostly in the southern half of MT and Hill County; across most of temperate North America (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database

Number of Observations: 28

(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

Sparsely vegetated gravelly or sandy soil of roadsides; plains, valleys (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Stewardship Responsibility

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:
Heartleaf Four-o'clock — Mirabilis nyctaginea. Montana Field Guide. Montana Natural Heritage Program. Retrieved on November 21, 2024, from https://FieldGuide.mt.gov/speciesDetail.aspx?elcode=PDNYC0A0W0