Difference between revisions of "Townsendia aprica"
Brittonia 20: 375, fig. 1. 1968.
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|name=Townsendia jonesii var. lutea | |name=Townsendia jonesii var. lutea | ||
|authority=S. L. Welsh | |authority=S. L. Welsh | ||
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|hierarchy=Asteraceae;Asteraceae tribe Astereae;Townsendia;Townsendia aprica | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Townsendia;Townsendia aprica | ||
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name=Townsendia aprica | name=Townsendia aprica | ||
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|authority=S. L. Welsh & Reveal | |authority=S. L. Welsh & Reveal | ||
|rank=species | |rank=species | ||
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|publication year=1968 | |publication year=1968 | ||
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| − | |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/V20_442.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Townsendia | |genus=Townsendia | ||
Revision as of 19:28, 16 December 2019
Perennials, 1–2 cm (± pulvinate). Stems ± erect; internodes 0.1–1 mm, ± strigose. Leaves basal and cauline, blades ± spatulate, 5–8(–16+) × 1.5–2.5+ mm, little, if at all, fleshy, faces ± strigose. Heads ± sessile. Involucres ± campanulate, 4–8+ mm diam. Phyllaries 24–40+ in 4+ series, the longer ± lanceolate, 4–7 mm (l/w = 2.5–5), sometimes glabrate, apices acute to attenuate, abaxial faces usually sparsely strigillose or glandular-puberulent. Ray florets 13–21; corollas yellow adaxially, laminae 4–6+ mm, glandular-puberulent abaxially. Disc florets 25–60+; corollas 4–5+ mm. Cypselae 2–2.5 mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae 10–12 lanceolate to subulate scales 0.5–1+ mm; on disc cypselae 20+ subulate to setiform scales 4–5+ mm. 2n = 18.
Phenology: Flowering Apr–May.
Habitat: Clay hills
Elevation: 1500–2500 m
Discussion
Of conservation concern.
Townsendia aprica is questionably distinct from T. jonesii. Townsendia aprica is in the Center for Plant Conservation’s National Collection of Endangered Plants.
Selected References
None.