Difference between revisions of "Ericameria discoidea"
Phytologia 68: 153. 1990.
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|name=Macronema discoidea | |name=Macronema discoidea | ||
|authority=Nuttall | |authority=Nuttall | ||
| + | |rank=species | ||
|publication_title=Trans. Amer. Philos. Soc., n. s. | |publication_title=Trans. Amer. Philos. Soc., n. s. | ||
|publication_place=7: 322. 1840 | |publication_place=7: 322. 1840 | ||
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|name=Haplopappus macronema | |name=Haplopappus macronema | ||
|authority=A. Gray | |authority=A. Gray | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Ericameria;Ericameria discoidea | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Ericameria;Ericameria discoidea | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Ericameria discoidea | name=Ericameria discoidea | ||
| − | |||
|authority=(Nuttall) G. L. Nesom | |authority=(Nuttall) G. L. Nesom | ||
|rank=species | |rank=species | ||
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|publication year=1990 | |publication year=1990 | ||
|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/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V20_90.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Ericameria | |genus=Ericameria | ||
Revision as of 19:31, 16 December 2019
Plants 10–40 cm. Stems erect to spreading, abundantly branched, twigs green when young, concealed by whitish, pannose tomentum, sporadically stipitate-glandular. Leaves ascending to spreading; blades linear or oblong to oblanceolate (flat), 10–35 × 2–7 mm, midnerves evident (1–2 fainter, collateral nerves often present), (margins often undulate) apices acute to obtuse, usually apiculate, faces usually stipitate-glandular, resinous; axillary fascicles absent. Heads borne singly or in cymiform to racemiform arrays. Peduncles 3–15 mm (bracts 0–3, reduced, leaflike, whitish tomentose and usually stipitate-glandular). Involucres obconic, 9–13 × 6–10 mm. Phyllaries 12–17 in 2–3 series, green to tan, lanceolate to oblong, 6–10 × 1–2 mm, subequal, outer herbaceous or distally so, inner mostly chartaceous, midnerves evident, (margins of outer often distally stipitate-glandular, of inner narrowly membranous, sometimes minutely ciliolate) apices acute to attenuate, abaxial faces stipitate-glandular. Ray florets 0. Disc florets 10–26; corollas 9–11 mm. Cypselae brownish, narrowly oblong to narrowly ovoid, 5–6 mm, villous; pappi tan, 8.5–11 mm. 2n = 18.
Phenology: Flowering late summer–fall.
Habitat: Rocky, open or sparsely wooded slopes, often in coarse talus
Elevation: 2500–3800 m
Distribution
Calif., Colo., Idaho, Mont., Nev., Oreg., Utah.
Discussion
Ericameria discoidea is common in the Rocky Mountains.
Selected References
None.