Difference between revisions of "Hymenoxys jamesii"
Madroño 40: 43. 1993.
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|common_names=James’s rubberweed | |common_names=James’s rubberweed | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=C | ||
| + | |label=Conservation concern | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms= | |synonyms= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Hymenoxys jamesii | name=Hymenoxys jamesii | ||
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|authority=Bierner | |authority=Bierner | ||
|rank=species | |rank=species | ||
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|publication title=Madroño | |publication title=Madroño | ||
|publication year=1993 | |publication year=1993 | ||
| − | |special status= | + | |special status=Endemic;Conservation concern |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_1112.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | ||
Latest revision as of 21:08, 5 November 2020
Biennials or perennials, 30–120 cm (monocarpic; sometimes with sparingly branched, woody caudices). Stems 1–4(–20), usually purple-red-tinted proximally, branched distally, ± hairy. Leaves: blades simple or lobed (lobes 3–9), ± hairy, gland-dotted; mid leaves lobed (lobes 3–5, terminal lobes 0.8–2.2 mm wide). Heads (30–)50–180(–330) per plant, in paniculiform to corymbiform arrays. Peduncles 1.3–5 cm, ± hairy. Involucres subhemispheric to campanulate, 4–7 × 4–8 mm. Phyllaries in 2 series, unequal; outer 8–10, basally connate 1/3 their lengths, ovate to lanceolate, 2.9–5.5 mm, apices acuminate to acute; inner 8–14, obovate, 2.8–4.2 mm, apices mucronate. Ray florets 7–9; corollas yellow, 4.2–8 × 2.3–5 mm. Disc florets 30–75+; corollas 2.4–3 mm. Cypselae narrowly obpyramidal, 1.6–2.1 mm; pappi of 4–5(–8) usually obovate, sometimes aristate, scales 0.8–2.1 mm. 2n = 30.
Phenology: Flowering (Jun–)Jul–Aug(–Sep).
Habitat: Roadsides, open areas, edges of juniper-pine forests
Elevation: 2000–2400 m
Discussion
Of conservation concern.
Hymenoxys jamesii is known from the Mogollon Plateau area.
Selected References
None.