Erechtites hieraciifolius

(Linnaeus) Rafinesque ex de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 294. 1838.
Illustrated
Basionym: Senecio hieraciifolius Linnaeus Sp. Pl. 2: 866. 1753 (as hieracifolius)
Treatment appears in FNA Volume 20. Treatment on page 603.

Annuals, (50–)100–200 cm (glabrous or unevenly coarse-tomentose, sometimes ± succulent). Taproots with tufts of fibrous roots. Stems 1(–2+), erect. Leaves evenly distributed (proximal often withering before flowering); indistinctly petiolate or subsessile; blades ovate-lanceolate to lanceolate, (3–)6–20 × (1–)2–8 cm, margins subentire to serrate or weakly lobed (distal leaves clasping, bractlike). Heads 2–20(–40) in ± corymbiform arrays. Involucres urceolate or obconic, 10–17 mm. Phyllaries usually 21. Receptacles (disclike, conspicuously expanded when fresh) 5–12 mm diam. Cypselae 2.3–3 or 4–5 mm, nerves 10–12 or 16–20, faces puberulent between nerves or glabrous.

Distribution

V20-1353-distribution-map.gif

N.B., N.S., Ont., P.E.I., Ark., Conn., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Mass., Md., Mich., Minn., Miss., Mo., N.C., N.H., N.J., N.Y., Nebr., Ohio, Okla., Pa., R.I., S.C., S.Dak., Tenn., Tex., Vt., W.Va., Wash., Wis., West Indies, South America, Pacific Islands (New Zealand), Australia.

Discussion

Varieties 3 (2 in the flora).

Selected References

None.

Key

1 Stems and leaves dry or turgid, not succulent; receptacles 5–8 mm diam.; cypselae 2.3–3 mm, nerves 10–12 (widespread) Erechtites hieraciifolius var. hieraciifolius
1 Stems and leaves succulent; receptacles 9–12+ mm diam.; cypselae 4–5 mm, nerves 16–20 (coastal marshes; Massachusetts to New Jersey) Erechtites hieraciifolius var. megalocarpus
... more about "Erechtites hieraciifolius"
Theodore M. Barkley† +
(Linnaeus) Rafinesque ex de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
Senecio hieraciifolius +
N.B. +, N.S. +, Ont. +, P.E.I. +, Ark. +, Conn. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Mass. +, Md. +, Mich. +, Minn. +, Miss. +, Mo. +, N.C. +, N.H. +, N.J. +, N.Y. +, Nebr. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Vt. +, W.Va. +, Wash. +, Wis. +, West Indies +, South America +, Pacific Islands (New Zealand) +  and Australia. +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Illustrated +
Compositae +
Erechtites hieraciifolius +
Erechtites +
species +