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FNA | Family List | FNA Vol. 20 | Asteraceae | Hasteola

2. Hasteola suaveolens (Linnaeus) Pojarkova, Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 20: 381. 1960.

Cacalia suaveolens Linnaeus, Sp. Pl. 2: 835. 1753; Senecio suaveolens (Linnaeus) Elliott; Synosma suaveolens (Linnaeus) Rafinesque ex Britton

Plants (60–)100–120(–240) cm. Leaves: basal and proximal cauline 20–30(–40) cm, proximal cauline blades hastate to deltate or lanceolate. Involucres campanulate to obconic, 11–14 mm. Phyllaries (10–)12–14(–17). Florets 18–55; corollas ochroleucous or white (rarely pinkish), 8–9(–10.5) mm; anthers 2–2.5 mm. Cypselae pale green to light brown, 5–7(–9) mm; pappi 6–7 mm. 2n = 40.

Flowering late summer–fall. Rich woods, shaded, wet areas bordering streams; 10–300+ m; Conn., Ill., Ind., Iowa, Ky., Md., Mass., Minn., Mo., N.J., N.Y., N.C., Ohio, Pa., R.I., Tenn., Va., W.Va., Wis.

Hasteola suaveolens is now less common or absent in the northeastern part of its historic range.


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