Difference between revisions of "Centrostegia thurberi"
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 14: 27. 1856.
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|accepted_name=Centrostegia thurberi | |accepted_name=Centrostegia thurberi | ||
| − | |accepted_authority=A. Gray | + | |accepted_authority=A. Gray |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | |title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | ||
|place=14: 27. 1856 | |place=14: 27. 1856 | ||
|year=1856 | |year=1856 | ||
| + | }} | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
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name=Centrostegia thurberi | name=Centrostegia thurberi | ||
| − | |authority=A. Gray | + | |authority=A. Gray |
|rank=species | |rank=species | ||
|parent rank=genus | |parent rank=genus | ||
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|publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | |publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | ||
|publication year=1856 | |publication year=1856 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_994.xml |
|subfamily=Polygonaceae subfam. Eriogonoideae | |subfamily=Polygonaceae subfam. Eriogonoideae | ||
|genus=Centrostegia | |genus=Centrostegia | ||
Latest revision as of 22:15, 5 November 2020
Illustrator:
Copyright:
Plants 0.3–2(–3) × (0.6–)1–4(–5) dm. Leaf blades (0.5–)1–3.5(–4) × 0.3–0.8(–1) cm. Inflorescences: bracts mostly spreading, (1–)2–6(–10) mm; awns 1–2 mm. Involucres (2–)3–6(–8) mm; basal spurs with awns 0.2–2 mm; teeth flattened and keeled distally, awn erect, short, 0.3–1 mm. Flowers: perianth 2–3(–3.5) mm; tepals oblanceolate; filaments 1–3 mm; anthers 0.4–0.5 mm. Achenes 2–2.5 mm. 2n = 38.
Phenology: Flowering Mar–Jul.
Habitat: Sandy to gravelly flats and slopes, mixed grassland, saltbush, creosote bush, and chaparral communities, pine-oak and montane conifer woodlands
Elevation: 300-2400 m
Distribution
Ariz., Calif., Nev., Utah, Mexico (Baja California, Sonora).
Discussion
Centrostegia thurberi is fairly consistent morphologically throughout its range except for individuals in some populations in the mountains of the southern Coast Ranges that tend to have slightly longer and more robust involucres. The name var. macrotheca is available for such plants.
Selected References
None.