Compilation
Ambrosia cordifolia

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Name

Identification
Franseria cordifolia A.Gray [family COMPOSITAE ] Verified by Not on sheet, Ambrosia cordifolia (A.Gray) W.W.Payne [family COMPOSITAE ] (stored under name); Verified by Not on sheet,
Related name
  • Franseria cordifolia
  • Ambrosia cordifolia

Flora

Entry for Ambrosia cordifolia (A. Gray) W. W. Payne [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 21,
Names
Ambrosia cordifolia (A. Gray) W. W. Payne [family COMPOSITAE], J. Arnold Arbor., 45: 421. 1964
Franseria cordifolia A. Gray [family COMPOSITAE], in A. Gray et al., Syn. Fl. N. Amer., 1(2): 445. 1884
Treatment Author(s)
John L. Strother
Information
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.
Phenology
mar-apr (spring)
Altitude range
700–1200 m;
Distribution
Mexico (Sinaloa).Mexico (Sonora).USA Ariz.

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