Difference between revisions of "Ambrosia chamissonis"
Man. Bot. San Francisco, 188. 1894.
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|name=Franseria chamissonis | |name=Franseria chamissonis | ||
|authority=Lessing | |authority=Lessing | ||
| + | |rank=species | ||
|publication_title=Linnaea | |publication_title=Linnaea | ||
|publication_place=6: 507. 1831 | |publication_place=6: 507. 1831 | ||
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|name=Franseria chamissonis subsp. bipinnatisecta | |name=Franseria chamissonis subsp. bipinnatisecta | ||
|authority=(Lessing) Wiggins & Stockwell | |authority=(Lessing) Wiggins & Stockwell | ||
| + | |rank=subspecies | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=A. chamissonis var. bipinnatisecta | |name=A. chamissonis var. bipinnatisecta | ||
|authority=(Lessing) J. T. Howell | |authority=(Lessing) J. T. Howell | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ambrosiinae;Ambrosia;Ambrosia chamissonis | |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ambrosiinae;Ambrosia;Ambrosia chamissonis | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Ambrosia chamissonis | name=Ambrosia chamissonis | ||
| − | |||
|authority=(Lessing) Greene | |authority=(Lessing) Greene | ||
|rank=species | |rank=species | ||
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|publication year=1894 | |publication year=1894 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/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 | ||
Latest revision as of 20:10, 5 November 2020
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.