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Montana Field Guide

Montana Field Guides

Slender Phlox - Microsteris gracilis
Other Names:  Phlox gracilis


Global Rank: G5
State Rank: S4S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 3

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General Description
Taprooted annual. Stems erect, simple or branched, 2–30 cm. Herbage glabrate, glandular-puberulent on the stems. Leaves sessile, entire, opposite below, alternate above, lanceolate to oblanceolate, 5–35 mm long. Inflorescence loose to glomerate, of single or paired flowers at branch tips. Flowers 5-merous; calyx 5–9 mm long with hyaline intercostal membranes; corolla, salverform, the tube white to yellow, 7–10 mm long, the lobes white to deep pink and 1–3 mm long; stamens included in the tube, unequally inserted with filaments shorter than the anthers. Capsule 3–5 mm long with 1 seed per locule (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
BC to CA, MT, CO, Mexico and South America.

Summary of Observations Submitted for Montana
Number of Observations: 35

(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
Often disturbed soil of grasslands, steppe, woodlands, rock outcrops, forest openings; plains, valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Slender Phlox — Microsteris gracilis.  Montana Field Guide.  .  Retrieved on , from