Difference between revisions of "Thymophylla concinna"
Sida 11: 376. 1986.
Basionym: Hymenatherum concinnum A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 446. 1884
Synonyms: Dyssodia concinna (A. Gray) B. L. Robinson
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|publication year=1986 | |publication year=1986 | ||
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| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V21_605.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Pectidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Pectidinae | ||
Revision as of 22:01, 27 May 2020
Annuals, green, 3–12+ cm, glabrous. Stems spreading to ascending or erect. Leaves alternate; blades 10–15 mm overall, lobed, lobes (3–)5–9, linear to filiform. Peduncles 1–5+ mm, glabrous. Calyculi 0, or of 1–2 subulate bractlets, lengths less than 1/2 phyllaries. Involucres obconic to campanulate, 5–6.5 mm. Phyllaries 8–16, margins of outer distinct less than 1/2 their lengths, abaxial faces glabrous. Ray florets 9–12; corollas white to pale yellow, laminae 3–4 × 1–3.5 mm. Disc florets ca. 25; corollas pale yellow, 3–4.5 mm. Cypselae 2.5–3 mm; pappi of 10–15 scales (each comprising 5–9 basally connate bristles) 1–2.5 mm. 2n = 16.
Phenology: Flowering spring, following rains.
Habitat: Sandy washes and flats, in deserts
Elevation: 50–100 m
Distribution
Ariz., Mexico (Sonora).
Discussion
Selected References
None.
Lower Taxa
None.