Difference between revisions of "Townsendia exscapa"
Mem. Torrey Bot. Club 5: 321. 1894.
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|place=5: 321. 1894 | |place=5: 321. 1894 | ||
|year=1894 | |year=1894 | ||
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
}} | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Aster exscapus | |name=Aster exscapus | ||
|authority=Richardson | |authority=Richardson | ||
| + | |rank=species | ||
|publication_title=in J. Franklin et al., Narr. Journey Polar Sea, | |publication_title=in J. Franklin et al., Narr. Journey Polar Sea, | ||
|publication_place=748. 1823 | |publication_place=748. 1823 | ||
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|name=Townsendia sericea | |name=Townsendia sericea | ||
|authority=Hooker | |authority=Hooker | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Townsendia;Townsendia exscapa | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Townsendia;Townsendia exscapa | ||
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name=Townsendia exscapa | name=Townsendia exscapa | ||
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|authority=(Richardson) Porter | |authority=(Richardson) Porter | ||
|rank=species | |rank=species | ||
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|publication title=Mem. Torrey Bot. Club | |publication title=Mem. Torrey Bot. Club | ||
|publication year=1894 | |publication year=1894 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_439.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Townsendia | |genus=Townsendia | ||
Latest revision as of 20:03, 5 November 2020
Perennials, 1–3 cm (± pulvinate). Stems ± erect; internodes 0.1–1 mm, ± hirsute to strigose or glabrate. Leaves basal and cauline, blades ± spatulate to narrowly oblanceolate or linear, 12–40(–75) × 2–6+ mm, not fleshy, faces ± strigillose. Heads ± sessile (usually nestled among rosette leaves). Involucres ± hemispheric, (10–)12–25+ mm diam. Phyllaries 30–45(–60) in 4–6+ series, the longer narrowly lanceolate or linear to subulate, (10–)12–14(–17) mm (l/w = 6–9), apices obtuse to acute, abaxial faces sparsely strigillose or glabrate. Ray florets 11–40; corollas white adaxially, laminae (9–)12–18+ mm, glabrous abaxially. Disc florets 100–150+; corollas 6.5–9(–12+) mm. Cypselae 4(–6+) mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae 20–30 setiform scales 6–8+ mm; on disc cypselae 20–30+ setiform scales 6.5–11+ mm. 2n = 18.
Phenology: Flowering Mar–Jun(–Aug).
Habitat: Openings in pine forests, meadows, gravelly hills, sandy soils
Elevation: (1300–)1600–2300(–3300) m
Distribution
Alta., Man., Sask., Ariz., Colo., Idaho, Kans., Mont., Nebr., Nev., N.Mex., N.Dak., Okla., S.Dak., Tex., Utah, Wyo., Mexico (Chihuahua).
Discussion
Selected References
None.