Vernonia blodgettii Small

Plants 2–3(–5+) dm. Stems glabrous or glabrate. Leaves mostly cauline; blades lance-linear to linear, 3–7+ cm × 2–8+ mm, l/w = 7–15+, abaxially scabrellous (hairs appressed, awl-shaped), resin-gland-dotted, adaxially scabrellous, glabrescent, resin-gland-dotted. Heads in open, corymbiform to paniculiform arrays. Peduncles 12–35 mm. Involucres campanulate to obconic, 6–8 × 6–10 mm. Phyllaries 30–40+ in 4–5 series, puberulent, margins arachno-ciliate, the outer lance-ovate, 2–3 mm, inner lance-oblong to linear-oblong, 6–7 mm, tips acute or rounded-apiculate. Florets 18–25+. Cypselae 2.5–3+ mm; pappi stramineous to whitish, outer scales 25–30, 0.5–1.1 mm, contrasting with 30–40+, 5–7+ mm inner bristles. 2n = 34.

Vernonia blodgettii Small, Fl. SE. U. S. 1160. 1903
Vernonia angnstifolia pumila Chapm. Bot. Gaz. 3: 5. 1878.
Stems slender, erect, simple or branched at the base, 2-6 dm. high, glabrous or nearly so; leaves numerous and crowded below, few and scattered above, the largest at or near the base, the blades firm, linear or narrowly lanceolate, 4-8 cm. long, 3-8 cm. wide, obtuse or acute, entire or minutely denticulate, glabrous above, sparsely short-pubescent and frequently glandular beneath; inflorescence loose, irregular; heads about 21-flowered; involucre broadly campanulate or hemispheric, 5 mm. high; scales few, appressed, loosely and irregularly imbricate, deltoid to lanceolate, glabrous or minutely puberulent at the tip, the outer sharply acute to subacuminate, the inner subacute to sharply acute, purple, or green at the center; achenes 2.5 mm. long, pubescent on the ribs, very resinous and dark-dotted in the furrows; pappus tawny to almost white, the bristles 6 mm. long, the irregular scales 0.5-0.8 mm. long.
Type locality: [Pine Key,] Florida. Distribution: Southern Florida.

Vernonia insularis Gleason, Bull. Torrey Club 33: 184. 1906
Stems herbaceous or suffruticose, erect, 6-10 dm. high, simple or sparingly branched, glabrous or minutely puberulent above; leaf -blades narrowly oblong-linear, 6-10 cm. long, 8-12 mm. wide, obtuse or subacute, mucronate, entire, acute or narrowed at the sessile base, green and essentially glabrous above, minutely puberulent and glandular-dotted beneath; inflorescence loose; heads 4-25, 18-29-flowered; involucre broadly campanulate or depressed-hemispheric, 5 mm. high; scales essentially glabrous, purple-tinged, membranous at the margin, the outer lanceolate, sharply acuminate, the inner oblong, abruptly acuminate or mucronate; achenes 2 mm. long, sparsely pubescent on the ribs, resinous in the furrows; pappus tawny, the bristles 6 mm., the scales 0.5 mm. long.
Type locality: Eight Mile Rocks, Great Bahama. Distribution: Bahama Islands.

Vernonia blodgettii, the Florida ironweed or Blodgett's ironweed, is a species of perennial plant from family Asteraceae that is native to Florida and the Bahamas.

Vernonia blodgettii adalah spesies tumbuhan yang tergolong ke dalam famili Asteraceae. Spesies ini juga merupakan bagian dari ordo Asterales. Spesies Vernonia blodgettii sendiri merupakan bagian dari genus Vernonia. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh Small.

Vernonia blodgettii là một loài thực vật có hoa trong họ Cúc. Loài này được Small miêu tả khoa học đầu tiên năm 1903.