Solidago mexicana Linnaeus. Subgenus: Pleiactila. Section: Maritimae. Common name: Southern Seaside Goldenrod. Phenology: Late Aug-Jan (and year-round southwards). Habitat: Coastal dunes, dune slacks, maritime wet grasslands, tidal marshes. Distribution: E. MA south to s. FL, west and south to TX and Mexico (TAB, TAM, VER); West Indies.
Origin/Endemic status: Native
Taxonomy Comments: This diploid species (2n=18) warrants distinction at specific rank from S. sempervirens.
Synonymy ⓘ: = K4, NY, POWO, S, Semple et al (2016a), (basionym); = Solidago sempervirens L. ssp. mexicana (L.) Semple — FNA20, Semple (2003); = Solidago sempervirens L. var. mexicana (L.) Fernald — C, F, G, GW2, Il, NE, SE1, Tx, Va, Johnson (1995); < Solidago sempervirens L. — Bah, Mex, RAB, Tat, WH3
Links to other floras: = Solidago sempervirens ssp. mexicana - FNA20
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACW (taxonomic split from wetland indicator species)
- Great Plains: FACW (taxonomic split from wetland indicator species)
- Midwest: FACW (taxonomic split from wetland indicator species)
- Northcentral & Northeast: FACW (taxonomic split from wetland indicator species)
Heliophily ⓘ: 8
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© Aidan Campos source | Original Image ⭷
© Alan Weakley source | Original Image ⭷
© Bruce A. Sorrie | Original Image ⭷
© Alan Weakley source | Original Image ⭷
© Jay Horn source | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
© Bruce A. Sorrie | Original Image ⭷
© Alan Weakley source | Original Image ⭷
© Jay Horn source | Original Image ⭷
© Alan Weakley source | Original Image ⭷
© Alan Weakley source | Original Image ⭷Feedback
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Horticultural Information
Intro: Erect-ascending, rhizomatous perennial of coastal dunes, dune slacks, maritime wet grasslands and tidal marshes.
Stems: Stems unbranched, sparsely hairy in lines.
Leaves: Leaves basal and alternate on stem, numerous, winged-petiolate (petioles of basal and lower leaves sheathing the stem), oblong-lance-shaped to lance-shaped, 2-12 in. long (reduced upward), with prominent midrib, fleshy-thick and smooth.
Inforescence:
Flowers: Composite flowers (heads) in conical to narrowly pyramidal array of branches, with heads mostly on 1 side of each branch; heads consisting of 7-11 small, yellow ray florets encircling a small center disk of 10-16 yellow tubular florets. The base of each head (covered by light green bracts) is less than 1/4 in. long.
Fruits:
Comments: May bloom sporadically until at least January in mild winters.
Height: 1 1/2 - 6 ft.
plant sale text:
bloom table text:
description: Erect-ascending, rhizomatous perennial of coastal dunes, dune slacks, maritime wet grasslands and tidal marshes.
stems: Stems unbranched, sparsely hairy in lines.
leaves: Leaves basal and alternate on stem, numerous, winged-petiolate (petioles of basal and lower leaves sheathing the stem), oblong-lance-shaped to lance-shaped, 2-12 in. long (reduced upward), with prominent midrib, fleshy-thick and smooth.
inflorescence:
flowers: Composite flowers (heads) in conical to narrowly pyramidal array of branches, with heads mostly on 1 side of each branch; heads consisting of 7-11 small, yellow ray florets encircling a small center disk of 10-16 yellow tubular florets. The base of each head (covered by light green bracts) is less than 1/4 in. long.
fruits:
comments: May bloom sporadically until at least January in mild winters.
cultural notes:
germination code:
native range: coastal U.S. from TX to MA