American burnweed
Erechtites hieraciifolius
American burnweed,Pilewort,Butterweed,Eastern Burnweed,Fireweed,White Fireweed
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Description
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.
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Taxonomy
Order
Asterales
Family
Asteraceae
Genus
Erechtites
Characteristics
Bloom Time
Summer, Jun, Jul, Aug, Sep, Oct
Plant Type
Annual, Native Plant, Weed, Herb., Herb
Lifespan
Annual
Flower
Flowers lack petals but are white or cream-colored.
Fruit
Seeds are in small, dandelion-like globes (small, wispy achenes) and are dispersed by wind.