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FNA | Family List | FNA Vol. 19, 20 and 21 | Asteraceae | Picris

2. Picris hieracioides Linnaeus, Sp. Pl. 2: 792. 1753.

Picris hieracioides var. alpina Koidzumi; P. hieracioides subsp. kamtschatica (Ledebour) Hultén

Biennials or perennials. Leaf blades 50–150(–300) × 10–25(–50+) mm. Involucres 8–15 × 10–16+ mm, larger in fruit. Phyllaries proximally ± flat, not each enfolding its subtended floret, usually bristly and/or tomentulose abaxially. Cypselae 3–4(–6) mm; pappi 5–7 mm. 2n = 10.

Flowering Jul–Oct. Disturbed sites; 0–50(–100+) m; introduced; Ont.; Alaska, Conn., Ill., Ky., Md., Mass., Mich., Mo., N.J., N.Y., N.C., Ohio, Pa., R.I., Tenn., Vt., Va., Wash.; Europe, Asia; also introduced, Africa, Australia.

In Alaska, Picris hieracioides is known only from the Aleutian Islands, where it may be native. This species is evidently no longer present in British Columbia.


 

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