Difference between revisions of "Ambrosia ambrosioides"
J. Arnold Arbor. 45: 410. 1964.
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| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Xanthidium ambrosioides | |name=Xanthidium ambrosioides | ||
|authority=Delpino | |authority=Delpino | ||
| + | |publication_title=Studi Lign. Anemof. | ||
| + | |publication_place=63 (1871) | ||
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|publication year=1964 | |publication year=1964 | ||
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| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_7.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | ||
Revision as of 18:49, 24 September 2019
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: Flowering Mar–May.
Habitat: Sandy soils, washes, banks
Elevation: (100–)500–1000+ m
Distribution
Ariz., Calif., Mexico (Baja California, Baja California Sur, Chihuahua, Durango, Sonora).
Discussion
Ambrosia ambrosioides has been reported from California; it may occur there.
Selected References
None.