Taxonomy
Family: Asteraceae
Synonymous with Solidago tenuifolia.
Habitat
Open sandy areas.
Associates
Distribution
Nova Scotia to FL and LA, primarily near the coast; disjunct in the southern Great Lakes region from northern OH to southern WI (E.remota).
Morphology
Herbaceous perennial; stems 30-100 cm, glabrous to glabrate; leaves thin and lax, linear or nearly filiform, 1-3(-4) mm wide, 1-nerved or also with a pair of weak lateral nerves, often with well-developed axillary fascicles; heads often pedunculate; involucres 3-4.5(-5) mm, resinous, mostly 10-21-flowered; rays about 2 mm, spreading, mostly (8-)10-16
Notes
Flowers late July to late September
Wetland indicator: FAC
Euthamia graminifolia is similar but has relatively wider leaves (3-12 mm) with three well-developed primary veins and often one or two additional pairs of fainter lateral ones. It also has relatively broad flower heads each containing 20-35+ flowers. Both species have gland-dotted leaves but in E. graminifolia the glands are usually sparse and obscure while in E. caroliniana they are more prominent and abundant.
References
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of
Northeastern United States
and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Michael Hough © 2018 |