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Australian bornweed, coastal burnweed, tooth coast burnweed

Habit Annuals or perennials, (50–)100–200 cm (sparsely and unevenly tomentose, glabrescent).
Taproots

with branching lateral roots.

Stems

1, erect.

Leaves

evenly distributed (proximal often withering before flowering); indistinctly petiolate (bases often weakly clasping);

blades lanceolate to narrowly lanceolate, (3–)7–20 × 1–4 cm, margins sharply and evenly toothed (not lobed or pinnatifid).

Heads

(40–)80–200 in open, corymbiform arrays (or arrays of clusters).

Involucres

cylindric or turbinate, 4–7 mm.

Receptacles

3–5 mm diam.

Phyllaries

usually 8.

Cypselae

1.5–2 mm, usually puberulent in lines along relatively narrow ribs, sometimes glabrous.

2n

= 60.

Erechtites minimus

Phenology Flowering summer–early fall.
Habitat Disturbed, coastal sites
Elevation 0–200 m [0–700 ft]
Discussion

The type of Erechtites prenanthoides (A. Richard) de Candolle (a name sometimes misapplied to plants of E. minimus) is conspecific with the type of E. quaridentata (Labillardière) de Candolle.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Distribution
from FNA
CA; OR; WA; Pacific Islands (New Zealand); Australia [Introduced in North America]
[WildflowerSearch map]
Parent taxa Asteraceae > tribe Senecioneae > Erechtites
Sibling taxa
E. glomeratus, E. hieraciifolius
Synonyms Senecio minimus
Name authority (Poiret) de Candolle: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 437. (1838)
Source Flora of North America vol. 20, p. 604.
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