Solidago puberula

Solidago puberula
1913 illustration[1]
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Solidago
Species: S. puberula
Binomial name
Solidago puberula
Nutt.
Synonyms[2][3]
  • Solidago puberula var. borealis Vict.
  • Solidago puberula var. expansa Vict.

Solidago puberula, the downy goldenrod,[4] is a plant species native to eastern North America from Nova Scotia and Ontario south to Florida and Louisiana. Two subspecies are commonly recognized:[2][5]

Subsp. pulverulenta has smaller but more numerous leaves, generally 50-110 leaves 10–40 mm (0.39–1.57 in) long halfway up the stem, as opposed to 10-60 leaves 40–50 mm (1.6–2.0 in) long for subsp. puberula.

Solidago puberula is a perennial herb up to 100 cm (39.5 in) 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 3 mm long.[6][7][8][9]

References

  1. ↑ USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 386.
  2. 1 2 The Plant List
  3. ↑ http://www.tropicos.org/Name/2703271
  4. ↑ "Solidago puberula". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 19 November 2015.
  5. ↑ Semple, John Cameron. 2003. New names and combinations in goldenrods, Solidago (Asteraceae: Astereae). Sida 20(4): 1605-1616.
  6. ↑ Nuttall, Thomas. 1818. Genera of North American Plants 2: 162.
  7. ↑ Gleason, H. A. & A.J. Cronquist. 1991. Manual of the Vascular Plants of Northeastern United States and Adjacent Canada (ed. 2) i–910. New York Botanical Garden, Bronx.
  8. ↑ Cronquist, A.J. 1980. Asteraceae. 1: i–xv, 1–261. In Vascular Flora of the Southeastern United States. The University of North Carolina Press, Chapel Hill.
  9. ↑ Scoggan, H. J. 1979. Dicotyledoneae (Loasaceae to Compositae). Part 4. 1117–1711 pp. In Flora of Canada. National Museums of Canada, Ottawa.
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