FNA: Cyanthillium cinereum

	Cyanthillium cinereum
	little ironweed
Leaf	blades 20–35(–50+) × 12–25(–30+) mm (including petioles).
Bracts	± linear at proximal nodes, wanting distally.
Peduncles	3–10(–20+) mm.
Phyllaries	3–4 mm.
Cypselae	1.5–2 mm; pappi white, outer scales 0.1–0.3 mm, inner bristles 3–4 mm.
2n	= 36.

	Cyanthillium cinereum
Phenology	Flowering year-round.
Habitat	Disturbed places
Elevation	0–10 m (0–0 ft)
Distribution	FL; Mexico; Central America; South America; West Indies; Asia; Africa; Indian Ocean Islands; Pacific Islands [Introduced in North America] [BONAP county map]
Source	FNA vol. 19, p. 205.
Parent taxa	Asteraceae > tribe Vernonieae > Cyanthillium
Synonyms	Conyza cinerea, Vernonia cinerea
Name authority	(Linnaeus) H. Robinson: Proc. Biol. Soc. Wash. 103: 252. (1990)
Web links	WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

little ironweed

Leaf

blades 20–35(–50+) × 12–25(–30+) mm (including petioles).

Bracts

± linear at proximal nodes, wanting distally.

Peduncles

3–10(–20+) mm.

Phyllaries

3–4 mm.

Cypselae

1.5–2 mm;

pappi white, outer scales 0.1–0.3 mm, inner bristles 3–4 mm.

= 36.

Phenology

Flowering year-round.

Habitat

Disturbed places

Elevation

0–10 m (0–0 ft)

Distribution

FL; Mexico; Central America; South America; West Indies; Asia; Africa; Indian Ocean Islands; Pacific Islands [Introduced in North America]

Source

Parent taxa

Synonyms

Conyza cinerea, Vernonia cinerea

Name authority

(Linnaeus) H. Robinson: Proc. Biol. Soc. Wash. 103: 252. (1990)

Web links

Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).

Choose a data source: Flora of North America

The species comparison tool is brought to you by:

Flora of North America species comparison