Difference between revisions of "Helianthus cusickii"
Proc. Amer. Acad. Arts 21: 413. 1886.
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|common_names=Cusick’s sunflower | |common_names=Cusick’s sunflower | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
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|publication title=Proc. Amer. Acad. Arts | |publication title=Proc. Amer. Acad. Arts | ||
|publication year=1886 | |publication year=1886 | ||
| − | |special status= | + | |special status=Endemic |
| − | |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_408.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae | ||
Revision as of 20:59, 27 May 2020
Perennials, 60–120 cm (taproots stout, parsniplike). Stems erect to prostrate, glabrous or glabrate. Leaves cauline; mostly opposite, petioles 0–1 cm; blades (light to dark green, 3-nerved at bases) lance-linear to lanceolate, 5–15 × 0.5–2.5 cm, bases cuneate, margins entire, abaxial faces glabrous or scabro-hispid, gland-dotted. Heads 1–3. Peduncles 2–10 cm. Involucres hemispheric, 12–28 mm diam. Phyllaries 12–18, lanceolate, 11–18 × 1.5–3 mm, apices acute to acuminate, abaxial faces gland-dotted. Paleae (lanceolate) 9–13 mm, subentire or 3-toothed (apices sparsely hairy, sometimes gland-dotted). Ray florets 12–16; laminae 20–35 mm (abaxial faces gland-dotted). Disc florets 40+; corollas 6.5–7.5 mm, lobes yellow; anthers usually dull orange or orange-brown, sometimes yellowish, appendages dull orange to yellowish. Cypselae 4–5 mm, glabrate; pappi of 2 aristate scales 3–4.2 mm. 2n = 34.
Phenology: Flowering late spring–summer.
Habitat: Dry slopes, open woods
Elevation: 600–2000 m
Distribution
Calif., Idaho, Nev., Oreg., Wash.
Discussion
Selected References
None.