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Montana Field Guide

Montana Field Guides

Narrow-leaf Four-o'clock - Mirabilis linearis
Other Names:  Mirabilis hirsuta [in part], Mirabilis hirsuta var. linearis

Native Species

Global Rank: G5
State Rank: S4
C-value: 4


Agency Status
USFWS:
USFS:
BLM:


 

External Links






 
General Description
Taprooted perennial herbs. Stems ascending, 15–80 cm, glandular-pubescent above, glaucous below. Leaves linear to lanceolate, sessile to short-petiolate; the blade 4–9 cm long. Inflorescence openly branched; involucres green, ca. 5 mm long, mostly 3-flowered. Flowers pink to purple, 6–10 mm long. Fruits olive-brown, 4–5 mm long, pubescent, 5-ribbed and cross-ribbed. MT plants are variety linearis (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range

Year-round
 


Range Comments
In most counties of MT although less common in far western and southwestern mountains; MN south to AZ, TX, and Mexico (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 42

(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
Sandy or gravelly soil of grasslands, tolerant of saline and alkaline conditions; 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?
    • Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
    • Seipel, T.F. 2006. Plant species diversity in the sagebrush steppe of Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 87 p.
    • Skilbred, Chester L. 1979. Plant succession on five naturally revegetated strip-mined deposits at Colstrip, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 128 pp.
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Citation for data on this website:
Narrow-leaf Four-o'clock — Mirabilis linearis.  Montana Field Guide.  .  Retrieved on , from