Difference between revisions of "Hymenoxys lemmonii"
Bull. Torrey Bot. Club 31: 477. 1904.
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|common_names=Lemmon’s rubberweed or bitterweed | |common_names=Lemmon’s rubberweed or bitterweed | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Picradenia lemmonii | |name=Picradenia lemmonii | ||
|authority=Greene | |authority=Greene | ||
| + | |publication_title=Pittonia | ||
| + | |publication_place=3: 272. 1898 (as lemmoni) | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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|publication year=1904 | |publication year=1904 | ||
|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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_1110.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | ||
Revision as of 18:46, 24 September 2019
Perennials, 30–50 cm (polycarpic; often with moderately branched, woody caudices). Stems 3–10(–15), green throughout or purple-red-tinted proximally, branched distally, glabrous or ± sparsely hairy. Leaves: blades simple or lobed (lobes 3–13), glabrous or sparsely hairy, gland-dotted; mid leaves lobed (lobes 3–7, terminal lobes 1.5–2.3 mm wide). Heads 10–85+ per plant, in paniculiform to corymbiform arrays. Peduncles (1–)2–4.5 cm, glabrous or ± hairy. Involucres subhemispheric to campanulate, 8–11 × 12–15 mm. Phyllaries in 2 series, unequal; outer 10–12, basally connate 1/4–1/2 their lengths (moderately to strongly keeled), ovate to lanceolate, 4.5–7 mm, apices acuminate to acute; inner 13–18(–28), obovate, 4–6 mm, apices usually mucronate. Ray florets 9–12; corollas yellow, 10–16 × 4–6.5 mm. Disc florets 50–125+; corollas 3.5–4.2 mm. Cypselae obpyramidal to narrowly obpyramidal, 2.5–3.5 mm; pappi of 5(–6) obovate, aristate scales (1.5–)2.1–2.8 mm. 2n = 30.
Phenology: Flowering (Jun–)Jul–Aug(–Sep).
Habitat: Roadsides, open areas, meadows, on slopes, along drainages and streams
Elevation: (800–)1400–2200(–3200) m
Distribution
Calif., Nev., Utah.
Discussion
Selected References
None.