Solidago puberula

Solidago puberula
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[1][2]
  • Solidago puberula var. borealis Vict.
  • Solidago puberula var. expansa Vict.

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:[3][1]



Subsp. pulverulenta has smaller but more numerous leaves, generally 50-110 leaves 10-40 mm (0.2-1.6 inches) long halfway up the stem, as opposed to 10-60 leaves 40-50 mm (1.6-1.8 inches) long for subsp. puberula.


Solidago puberula is a perennial herb up to 100 cm (40 inches) 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.[4][5][6][7]

References

  1. ↑ 1.0 1.1 The Plant List
  2. ↑ http://www.tropicos.org/Name/2703271
  3. ↑ Semple, John Cameron. 2003. New names and combinations in goldenrods, Solidago (Asteraceae: Astereae). Sida 20(4): 1605-1616.
  4. ↑ Nuttall, Thomas. 1818. Genera of North American Plants 2: 162.
  5. ↑ 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.
  6. ↑ 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.
  7. ↑ Scoggan, H. J. 1979. Dicotyledoneae (Loasaceae to Compositae). Part 4. 1117–1711 pp. In Flora of Canada. National Museums of Canada, Ottawa.