Difference between revisions of "Ambrosia chamissonis"
Man. Bot. San Francisco, 188. 1894.
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| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Franseria chamissonis | |name=Franseria chamissonis | ||
|authority=Lessing | |authority=Lessing | ||
| + | |publication_title=Linnaea | ||
| + | |publication_place=6: 507. 1831 | ||
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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_18.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | ||
Revision as of 19:47, 24 September 2019
Perennials, 50–150(–350+) cm. Stems prostrate or decumbent. Leaves mostly alternate; petioles 15–30(–45+) mm; blades rounded-deltate to ovate or obovate, 20–45(–70+) × 10–25(–50+) mm overall, not lobed or 1–2(–3)-pinnately lobed, bases cuneate, ultimate margins entire or toothed, abaxial and adaxial faces strigillose to sericeous. Pistillate heads clustered, proximal to staminates; florets 1. Staminate heads: peduncles 0.5–2 mm; involucres shallowly cup-shaped, 4–6+ mm diam., strigillose; florets 8–25(–50). Burs: bodies fusiform to ± pyriform, 4–7+ mm, ± strigillose to pilosulous, spines 8–16+, scattered, stoutly conic or flattened- to triquetrous-subulate, 0.5–1.5+ mm, tips straight. 2n = 36.
Phenology: Flowering Apr–Nov.
Habitat: Sandy beaches and strand
Elevation: 0–10 m
Distribution
B.C., Alaska, Calif., Oreg., Wash., Mexico (Baja California).
Discussion
Selected References
None.