''Solidago puberula,'' the downy goldenrod, is a plant species native to eastern North America from
Nova Scotia and
Ontario south to
Florida and
Louisiana. Two subspecies are commonly recognized:
[The Plant List]
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*''Solidago puberula'' subsp. ''puberula''
*''Solidago puberula'' subsp. ''pulverulenta''
Subsp. ''pulverulenta'' has smaller but more numerous leaves, generally 50–110 leaves long halfway up the stem, as opposed to 10-60 leaves long for subsp. ''puberula''.
''Solidago puberula'' is a perennial herb up to tall, with a branched woody rootstock. It can have 1-5 puberulent (hairy) stems. Leaves are toothed, tapering at the tip, puberulent on both sides. Flowering heads number 15–250, in an elongate, paniculiform array. Ray flowers are yellow, 9–16 per head. Disc flowers number 6–15 per head, each up to long.[Scoggan, H. J. 1979. Dicotyledoneae (Loasaceae to Compositae). Part 4. 1117–1711 pp. In Flora of Canada. National Museums of Canada, Ottawa.]
Galls
This species is host to the following insect induced gall:
* ''Schizomyia racemicola
''Schizomyia racemicola'' is a species of fly in the family Cecidomyiidae. This gall midge species induces gall
Galls (from the Latin , 'oak-apple') or ''cecidia'' (from the Greek , anything gushing out) are a kind of swelling growth on th ...
'' (Osten Sacken, 1862)
external link to gallformers
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References
puberula
Flora of Canada
Flora of the United States
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