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Solidago altissima subsp. altissima Family Asteraceae
Common name: Goldenrod

Solidago altissima subsp. altissima APNI*

Synonyms: Solidago canadensis var. scabra Torr. & A.Gray APNI*

Description: Stoloniferous herb, 0.8–2 m high; stems unbranched below inflorescence, ± glabrous to hairy or scabrous.

Basal leaves few, petiolate, soon withering; cauline leaves numerous, sessile, lanceolate or oblong-lanceolate, 2–12 cm long, 4–20 mm wide, apex acuminate, margins entire to toothed, upper surface densely scabrous, lower surface ± hairy or scabrous.

Panicles pyramidal, 5–25 cm long, heads pedunculate, on one side of the rachis; heads 5–6 mm diam.; involucral bracts linear-lanceolate, in c. 3 series, 3–4 mm long, yellow-green. Ray florets 9–15; ligule 1–2 mm long, yellow. Disc florets 2–8, yellow.

Achenes 0.8–2 mm long, sparsely hairy; pappus 2–3 mm long.

Flowering: summer.

Distribution and occurrence: Garden escape, naturalized on wasteland. In NSW, Qld and Vic. Native of North America, widespread across much of Canada, the United States, and northern Mexico.
NSW subdivisions: *NC, *CC, *NT, *CT, *CWS, *SWP
Other Australian states: *Qld *Vic.
AVH map***

Previously misapplied to the name Solidago canadensis var. scabra Torr. & A.Gray;

Text by Updated L. Murray Feb 2019
Taxon concept: APC

APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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