Difference between revisions of "Rayjacksonia annua"
Amer. J. Bot. 83: 368. 1996.
Common names: Viscid camphor-daisy
Basionym: Sideranthus annuus Rydberg
Synonyms: Haplopappus annuus (Rydberg) Cory Machaeranthera annua (Rydberg) Shinners
Treatment appears in FNA Volume 20. Treatment on page 438.
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|name=Haplopappus annuus | |name=Haplopappus annuus | ||
|authority=(Rydberg) Cory | |authority=(Rydberg) Cory | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Machaeranthera annua | |name=Machaeranthera annua | ||
|authority=(Rydberg) Shinners | |authority=(Rydberg) Shinners | ||
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|publication year=1996 | |publication year=1996 | ||
|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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V20_1003.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Rayjacksonia | |genus=Rayjacksonia | ||
Revision as of 15:16, 18 September 2019
Annuals, 20–100 cm, herbaceous or suffrutescent. Leaf blades oblanceolate to oblong or oblong-lanceolate, mid-cauline (1–)4–15(–25) mm wide. Heads on short, sometimes bracteate peduncles, not surpassed by distal leaves. Involucres (4.5–)6–9 × 9–15(–20) mm. Phyllaries in 3–4 series, loose, strongly unequal, apices broadly spreading to squarrose, ca. 0.9–1 mm wide, herbaceous. Ray florets (13–)20–36; corollas 6–11(–14) mm. Disc florets: corolla tubes ± equaling limbs. 2n = 12.
Phenology: Flowering (Jul–)Aug–Oct.
Habitat: Sand or sandy loam, prairies, stream sides and bottoms, alkaline flats, salt marsh edges, roadsides
Elevation: 1000–1700 m
Distribution
Colo., Kans., Nebr., N.Mex., Okla., Tex., Wyo.
Discussion
Selected References
None.
Lower Taxa
None.