Difference between revisions of "Erechtites hieraciifolius"
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 294. 1838.
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|accepted_name=Erechtites hieraciifolius | |accepted_name=Erechtites hieraciifolius | ||
| − | |accepted_authority=(Linnaeus) Rafinesque ex | + | |accepted_authority=(Linnaeus) Rafinesque ex de Candolle |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | |title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | ||
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name=Erechtites hieraciifolius | name=Erechtites hieraciifolius | ||
| − | |authority=(Linnaeus) Rafinesque ex | + | |authority=(Linnaeus) Rafinesque ex de Candolle |
|rank=species | |rank=species | ||
|parent rank=genus | |parent rank=genus | ||
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|publication year=1838 | |publication year=1838 | ||
|special status=Illustrated | |special status=Illustrated | ||
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|tribe=Asteraceae tribe Senecioneae | |tribe=Asteraceae tribe Senecioneae | ||
|genus=Erechtites | |genus=Erechtites | ||
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Revision as of 21:00, 5 November 2020
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
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.
Lower Taxa
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 |