Compilation
Franseria ambrosioides

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Name

Identification
Ambrosia maritima L. [family ASTERACEAE ] (stored under name); Verified by Not on sheet, Franseria ambrosioides Cav. [family ASTERACEAE ] Verified by Smith, Sir James Edward,
Related name
  • Franseria ambrosioides
  • Ambrosia longifolia
  • Ambrosia maritima

Flora

Entry for Ambrosia ambrosioides (Cavanilles) 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 ambrosioides (Cavanilles) W. W. Payne [family COMPOSITAE], J. Arnold Arbor., 45: 410. 1964
Franseria ambrosioides Cavanilles [family COMPOSITAE], Icon., 2: 79, plate 200. 1793
Treatment Author(s)
John L. Strother
Information
Shrubs, 60–150+ cm. Stems erect. Leaves mostly alternate; petioles 10–35 mm; blades lanceolate to narrowly triangular, 50–150+ × 18–55+ mm, bases truncate to cordate, margins coarsely toothed (not spiny), abaxial and adaxial faces ± hirsutulous and gland-dotted. Pistillate heads clustered on lateral axes, proximal to staminates; florets 4–5. Staminate heads: peduncles 2–4(–12) mm; involucres ± saucer-shaped, 4–6+ mm diam., ± hirsutulous; florets 40–60+. Burs: bodies ± fusiform, 6–8+ mm, stipitate-glandular, spines 60–80+, scattered, subulate, 4–6 mm, tips uncinate. 2n = 36.
Phenology
mar-may (spring)
Altitude range
(100–)500–1000+ m;
Distribution
Mexico (Baja California).Mexico (Baja California Sur).Mexico (Chihuahua).Mexico (Durango).Mexico (Sonora).USA Ariz.USA Calif.
Discussion
Ambrosia ambrosioides has been reported from California; it may occur there.

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