Heterotheca subaxillaris (Lamarck) Britton & Rusby. Common name: Camphorweed. Phenology: Jul-Oct (-Jan). Habitat: Coastal dunes and sand-flats, roadsides, disturbed areas. Distribution: NJ, PA, IN, IL, SD, UT and CA south to FL, TX, and Mexico.
Origin/Endemic status: Native
Synonymy ⓘ: = C, F, Fl7, G, Il, K4, Mex, NcTx, NY, Pa, POWO, RAB, S, SE1, Tat, WH3, Nesom (2019e); > Heterotheca latifolia Buckley var. arkansana Wagenkn. — Tx; > Heterotheca latifolia Buckley var. latifolia — Tx, Semple (1996), Wagenknecht (1960); > Heterotheca latifolia Buckley var. macgregoris Wagenkn. — GrPl; > Heterotheca subaxillaris (Lam.) Britton & Rusby — Va, Semple (1996); > Heterotheca subaxillaris (Lam.) Britton & Rusby ssp. latifolia (Buckley) Semple — Ar, FNA20, Tn, Semple (2004); > Heterotheca subaxillaris (Lam.) Britton & Rusby ssp. subaxillaris — FNA20, Semple (2004); > Heterotheca subaxillaris (Lam.) Britton & Rusby var. latifolia (Buckley) Gandhi & R.D.Thomas — NE, Gandhi & Thomas (1989); > Heterotheca subaxillaris (Lam.) Britton & Rusby var. procumbens Wagenkn. — Tx; > Heterotheca subaxillaris (Lam.) Britton & Rusby var. subaxillaris — Tx, Gandhi & Thomas (1989), Wagenknecht (1960); Inula subaxillaris Lamarck. Basionym: Inula subaxillaris Lam. 1789
Links to other floras: > Heterotheca subaxillaris ssp. latifolia - FNA20; > Heterotheca subaxillaris ssp. subaxillaris - FNA20
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Heliophily ⓘ: 9
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© Gary P. Fleming | Original Image ⭷
© John Gwaltney | Original Image ⭷
© John Gwaltney | Original Image ⭷
© John Gwaltney | Original Image ⭷
© Aidan Campos source | Original Image ⭷
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Horticultural Information
Intro: Erect to sprawling annual/biennial (occasionally short-lived perennial) of coastal dunes and sand flats.
Stems: Stems branched above, usually covered with long spreading hairs and stalked glands.
Leaves: Leaves alternate, sessile (clasping above), oval to oblong or lance-shaped, 3/4-3 1/2 in. long, coarsely toothed or entire, with scattered long hairs on margins, rough-hairy.
Inforescence:
Flowers: Composite flowers (heads) in diffusely branching terminal cluster; heads about 1 in. wide; consisting of 15-30 narrow, yellow ray florets encircling a central disk of many yellow tubular florets. Several series of densely hairy-glandular, green, narrow bracts surround the cup-shaped base of each head.
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Comments:
Height: 2-6 1/2 ft.
plant sale text:
bloom table text:
description: Erect to sprawling annual/biennial (occasionally short-lived perennial) of coastal dunes and sand flats.
stems: Stems branched above, usually covered with long spreading hairs and stalked glands.
leaves: Leaves alternate, sessile (clasping above), oval to oblong or lance-shaped, 3/4-3 1/2 in. long, coarsely toothed or entire, with scattered long hairs on margins, rough-hairy.
inflorescence:
flowers: Composite flowers (heads) in diffusely branching terminal cluster; heads about 1 in. wide; consisting of 15-30 narrow, yellow ray florets encircling a central disk of many yellow tubular florets. Several series of densely hairy-glandular, green, narrow bracts surround the cup-shaped base of each head.
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germination code:
native range: eastern to southwestern U.S. & Mexico
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