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Montana Field Guide

Montana Field Guides

Giant Goldenrod - Solidago gigantea

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Global Rank: G5
State Rank: S3S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 6

External Links

 
General Description
Strongly rhizomatous. Stems erect, simple, 40–100 cm, sometimes clustered. Herbage glabrous; the inflorescence puberulent. Leaves cauline, sessile, short-petiolate; blades lanceolate, serrate, 4–12 cm long, gradually reduced upward. Inflorescence pyramidal; heads secund on arching branches. Involucres campanulate, 3–4 mm high; phyllaries linear-lanceolate, ciliate. Rays 9 to 15; ligules 2–3 mm long. Disk flowers 7 to 12; corollas 3–5 mm long. Achenes 1–1.5 mm long, sparsely strigose (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
BC to NS south to TX, FL and Mexico (Lesica 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
Meadows, thickets, roadsides, often along streams; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Giant Goldenrod — Solidago gigantea.  Montana Field Guide.  .  Retrieved on , from