Ambrosia cordifolia (A.Gray) W.W.Payne

Tucson burr ragweed (en)

Species

Angiosperms > Asterales > Asteraceae > Ambrosia

Characteristics

Shrubs, 30–50+ cm. Stems erect. Leaves mostly alternate; petioles 3–35 mm; blades deltate to rounded-deltate, 10–35(–80) × 10–30(–70) mm, bases cordate to truncate, margins coarsely toothed, abaxial faces densely puberulent (including veins), adaxial faces strigillose to scabrellous and gland-dotted. Pistillate heads clustered, proximal to staminates; florets (1–)2. Staminate heads: peduncles 0–1 mm; involucres cup-shaped, 2–3(–5) mm diam., strigillose; florets 8–30+. Burs: bodies ± globose to fusiform, 3–4+ mm, tomentulose and stipitate-glandular, spines 8–20+, scattered, ± subulate (basally navicular), 1–2 mm, tips straight or uncinate.
Life form perennial
Growth form shrub
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Mature height (meter) 0.3 - 0.5
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Environment

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Hardiness (USDA) 8-12

Usage

Uses medicinal
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Cultivation

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Distribution

Ambrosia cordifolia world distribution map, present in Mexico and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:11052-2
WFO ID wfo-0000095477
COL ID 65ZQZ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Ambrosia cordifolia Franseria cordifolia Gaertneria cordifolia