Difference between revisions of "Ambrosia linearis"
J. Arnold Arbor. 45: 425. 1964.
Basionym: Gaertneria linearis Rydberg Bull. Torrey Bot. Club 32: 133. 1905
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|name=Gaertneria linearis | |name=Gaertneria linearis | ||
|authority=Rydberg | |authority=Rydberg | ||
| + | |rank=species | ||
|publication_title=Bull. Torrey Bot. Club | |publication_title=Bull. Torrey Bot. Club | ||
|publication_place=32: 133. 1905 | |publication_place=32: 133. 1905 | ||
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name=Ambrosia linearis | name=Ambrosia linearis | ||
| − | |||
|authority=(Rydberg) W. W. Payne | |authority=(Rydberg) W. W. Payne | ||
|rank=species | |rank=species | ||
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|publication year=1964 | |publication year=1964 | ||
|special status= | |special status= | ||
| − | |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/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_22.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | ||
Revision as of 19:35, 16 December 2019
Perennials or subshrubs, 20–40+ cm. Stems erect. Leaves mostly alternate; petioles 0; blades mostly linear (some 1-pinnate, lobes linear), 12–20(–35+) × 1(–2+) mm, bases cuneate, margins entire, abaxial faces strigillose (whitish), adaxial faces scabrellous. Pistillate heads clustered, proximal to staminates; florets 1. Staminate heads: peduncles 0.5–1 mm; involucres cup-shaped (with black nerves), 4–6+ mm diam., strigillose; florets 12–20+. Burs: bodies pyriform to obconic, 2–4(–5) mm, strigillose, spines (4–)5–9(–13+), scattered or mostly distal, subulate, (0.8–)1–1.5 mm, tips usually uncinate.
Phenology: Flowering Jul.
Habitat: Seasonally wet, sandy soils
Elevation: 2000–2100 m
Discussion
Ambrosia linearis is in the Center for Plant Conservation’s National Collection of Endangered Plants.
Selected References
None.
Lower Taxa
None.