Flaveria linearis


Gen. Sp. Pl., 33. 1816.

Common names: Narrowleaf yellowtops
Synonyms: Flaveria ×latifolia (J. R. Johnston) R. W. Long & E. L. Rhamstine
Treatment appears in FNA Volume 21. Treatment on page 249. Mentioned on page 248.

Perennials, 30–80 cm (glabrous or pubescent, mostly on distal peduncles). Stems erect. Leaves sessile; blades linear, 50–100(–130) × 1–4(–15) mm, ± connate, margins entire or spinulose-serrulate. Heads 10–150+, in clusters in corymbiform-paniculiform arrays. Calyculi of 1–3 linear bractlets 1–2.5 mm. Involucres oblong-angular, 3.3–4.5 mm. Phyllaries 5(–6), linear or oblong. Ray florets 0 or 1; laminae yellow, oval to obovate-spatulate, 2–3 mm. Disc florets (2–)5–7(–8); corolla tubes 0.8–1.2 mm, throats basally tubular, becoming funnelform-campanulate apically, 1–1.5 mm. Cypselae linear, 1.2–1.8 mm; pappi 0. 2n = 36.

Phenology: Flowering year round.
Habitat: Disturbed sites, beaches, hammocks, pinelands
Elevation: 0–10(–20+) m



Fla., Mexico (Quintana Roo, Yucatán), West Indies (Bahamas, Cuba).


Flaveria linearis is variable; it typically has linear leaves, calyculi of relatively short, linear bractlets, and oblong-angular involucres. The heads are relatively small with 5–8 florets, and throats of the disc corollas are tubular at the base, abruptly expanding distally to become funnelform-campanulate. Plants of this species, the most common Flaveria in Florida, occur throughout most of the Florida peninsula, often near the coast.

Selected References


Lower Taxa

... more about "Flaveria linearis"
Sharon C. Yarborough +  and A. Michael Powell +
Lagasca +
Narrowleaf yellowtops +
Fla. +, Mexico (Quintana Roo +, Yucatán) +, West Indies (Bahamas +  and Cuba). +
0–10(–20+) m +
Disturbed sites, beaches, hammocks, pinelands +
Flowering year round. +
Gen. Sp. Pl., +
Flaveria ×latifolia +
Flaveria linearis +
Flaveria +
species +