Difference between revisions of "Heterotheca oregona"
Field & Lab. 19: 71. 1951.
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|common_names=Oregon goldenaster | |common_names=Oregon goldenaster | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Ammodia oregona | |name=Ammodia oregona | ||
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-->{{Treatment/Body | -->{{Treatment/Body | ||
| − | |distribution= | + | |distribution=Calif.;Oreg.;Wash. |
|discussion=<p>varieties 4 (4 in the flora</p><!-- | |discussion=<p>varieties 4 (4 in the flora</p><!-- | ||
--><p>Varieties 4 (4 in the flora).</p> | --><p>Varieties 4 (4 in the flora).</p> | ||
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|basionyms=Ammodia oregona | |basionyms=Ammodia oregona | ||
|family=Asteraceae | |family=Asteraceae | ||
| − | |distribution= | + | |distribution=Calif.;Oreg.;Wash. |
|reference=None | |reference=None | ||
|publication title=Field & Lab. | |publication title=Field & Lab. | ||
|publication year=1951 | |publication year=1951 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_518.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Heterotheca | |genus=Heterotheca | ||
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| − | -->[[Category:Treatment]][[Category:Heterotheca]] | + | --> |
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| + | [[Category:Treatment]] | ||
| + | [[Category:Heterotheca]] | ||
| + | [[Category:Revised Since Print]] | ||
Latest revision as of 19:20, 6 November 2020
Perennials, 15–105 cm; caudices branched. Stems ascending to erect (sometimes ± brittle, sometimes brown), glabrate to densely hispid or densely stipitate-andular (axillary leaf fascicles sometimes present). Leaves: basal and proximal cauline withering by flowering; sessile; mid and distal blades ovate to linear-lanceolate, 12–50 × 4–40 mm, rounded to very weakly clasping, margins flat, strigoso-ciliate, apices acute, faces glabrate to densely hairy and/or stipitate-glandular; branch leaves reduced. Heads (discoid) 1–15 per branch, in corymbiform, openly paniculiform, or racemiform arrays. Peduncles 5–50 mm, sparsely to densely hispid, stipitate-glandular; bracts linear to narrowly lanceolate, 3–9 × 0.5–2 mm. Involucres turbino-cylindric, 7.5–14 mm. Phyllaries in 5–7 series, outer ovate to deltate (2–5 × 0.6–1.7 mm), inner lanceolate, unequal, abaxial faces sparsely to densely hispid or stipitate-glandular (in green zone). Ray florets 0. Disc florets (14–)20–45(–60); corollas ± ampliate, (7.5–)8.5–11(–14) mm, throats and lobes sparsely short-pilose, lobes 0.4–0.9 mm (margins thickened). Cypselae monomorphic, obconic, compressed, 2–5 × 0.35–1.6 mm, ribs 5–10, faces sparsely strigose; pappi tan, outer of linear scales 0.1–0.5 mm (not obvious), inner of 30–40 bristles 4.5–6.4, longest weakly clavate. 2n = 18.
Distribution
Calif., Oreg., Wash.
Discussion
varieties 4 (4 in the flora
Varieties 4 (4 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Distal stems densely, coarsely stipitate-glandular; mid cauline leaves averaging 13.9 × 3.9 mm (9.2–19.4 × 2.2–7.8 mm); outer phyllaries narrowly to broadly ovate; inner Coast Ranges, California | Heterotheca oregona var. scaberrima |
| 1 | Distal stems sparsely to moderately, coarsely stipitate-glandular, or moderately to densely, finely stipitate-glandular; mid cauline leaves averaging 22–32 × 4.7–9.1 mm (1.5–42.5 × 2.1–36.3 mm); outer phyllaries lanceolate; Cascades to Coastal ranges, Washington to c California | > 2 |
| 2 | Stems usually branched proximally; leaves gray-green, long-villous (200–1000+ m in moun-tains, n California) | Heterotheca oregona var. compacta |
| 2 | Stems usually openly branched distally; leaves green, glabrate to moderately hispid | > 3 |
| 3 | Stems moderately to densely, finely stipitate-glandular; branch leaves glabrate to sparsely hispid (fewer than 5 hairs/mm²), moderately stipitate-glandular; Olympic Peninsula and Cascades to Coastal ranges (n, c California) | Heterotheca oregona var. oregona |
| 3 | Stems sparsely to moderately coarsely stipitate-glandular; branch leaves moderately short-hispid (more than 5 hairs/mm²), sparsely to moderately, coarsely stipitate-glandular; coast to lower mountains, s Oregon, n California | Heterotheca oregona var. rudis |