Solidago spathulata

Coast Goldenrod

Solidago spathulata range Semple draft

Solidago spathulata DC. is scattered in isolated dune and headland populations along the coast of central and northern California, Oregon and Washington. The surface resin typical in subsect. Humiles is particularly copious in this species. A narrow interpretation of the species is accepted here following Ringius (1985). The species is diploid (2n=18; Peirson et al. 2012). (See Semple & Cook 2006 FNA). Semple et al. (2019) presented a multivariate analysis of all 13 species of S. subsect. Humiles and found S. spathulata to be distinct from all other species by having obviously multi-serrate middle and upper stem leaves and being very glutinous-resinous over much of the plant. 

Semple, J.C., K. Kornobis, A. Mazzorato, G.S. Ringius, and J.A. Peirson. 2019. A multivariate morphometric analysis of SolidagoÌý²õ³Ü²ú²õ±ð³¦³Ù.ÌýHumiles (Asteraceae: Astereae). Phytoneuron 2019-24: 1–61.

Last revised 19 May 2025 by J.C. Semple     

© 2025 J.C. Semple, including all photographs unless otherwise indicated

Solidago spathulata, Habitat, beach, Oregon
Solidago spathulata, beach, Oregon
Solidago spathulata, stems and leaves, Semple et al 2019 Fig 22
Floral morphology, Solidago spathulata, Semple et al 2019 Fig 22

1-4. Solidago spathulata. 1. Habitat, beach dunes, Semple & Brouillet 7119, Tillamook Co., Oregon. 2. Robust plants, S & B 7119. 3. Stems and leaves, Semple et al. 2019 Fig 22 A-F. 4.  Heads and fruit, Semple et al 2019 Fig 22 G-H.