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New York ironweed

Habit Plants 8–12(–20) dm.
Stems

puberulent, glabrescent.

Leaves

mostly cauline;

blades ± lanceolate, 9–15(–25+) cm × 15–45(–60+) mm, l/w = (3.3–)4–6+, abaxially scabrellous, tomentose, or pannose, resin-gland-dotted, adaxially scabrellous, often resin-gland-dotted.

Peduncles

2–35 mm.

Involucres

± hemispheric, 6–10 × 7–10 mm.

Florets

30–45(–65).

Phyllaries

35–60+ in 4–6+ series, sparsely tomentulose, glabrescent, margins ciliolate, the outer lanceolate to subulate, 1–3 mm, inner oblong, 7–9+ mm, tips subulate to filiform.

Heads

in corymbiform to paniculiform arrays.

Cypselae

3.5–4+ mm;

pappi fuscous to purplish, outer scales 20, 0.2–0.6+ mm, contrasting with 30–40+, 5–7+ mm inner bristles.

2n

= 34.

Vernonia noveboracensis

Phenology Flowering Aug–Oct.
Habitat Abandoned fields, marshes, roadsides
Elevation 10–600 m (0–2000 ft)
Distribution
from FNA
AL; CT; DC; DE; FL; GA; MA; MD; NC; NJ; NY; PA; RI; SC; TN; VA; WV
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 19, p. 209.
Parent taxa Asteraceae > tribe Vernonieae > Vernonia
Sibling taxa
V. acaulis, V. angustifolia, V. arkansana, V. baldwinii, V. blodgettii, V. fasciculata, V. flaccidifolia, V. gigantea, V. glauca, V. larseniae, V. lettermannii, V. lindheimeri, V. marginata, V. missurica, V. pulchella, V. texana
Synonyms Serratula noveboracensis, V. harperi, V. noveboracensis var. tomentosa
Name authority (Linnaeus) Michaux: Fl. Bor.-Amer. 2: 95. (1803)
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