Difference between revisions of "Eriogonum ochrocephalum"

S. Watson in W. H. Brewer et al.

in W. H. Brewer et al., Bot. California 2: 480. 1880.

Treatment appears in FNA Volume 5. Treatment on page 283. Mentioned on page 225, 230, 233, 264, 277, 280.
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|distribution=w United States.
 
|distribution=w United States.
 
|discussion=<p>Varieties 2 (2 in the flora).</p><!--
 
|discussion=<p>Varieties 2 (2 in the flora).</p><!--
--><p>Variety ochrocephalum is occasionally seen in rock gardens, and <i></i></i>var.<i><i> calcareum</i> is worthy of cultivation.</p>
+
--><p>Variety ochrocephalum is occasionally seen in rock gardens, and <i></i>var.<i> calcareum</i> is worthy of cultivation.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Eriogonum ochrocephalum
 
name=Eriogonum ochrocephalum
|author=
 
 
|authority=S. Watson in W. H. Brewer et al.
 
|authority=S. Watson in W. H. Brewer et al.
 
|rank=species
 
|rank=species
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|publication year=1880
 
|publication year=1880
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V5/V5_550.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V5/V5_550.xml
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|genus=Eriogonum
 
|genus=Eriogonum

Revision as of 21:54, 16 December 2019

Herbs, matted, scapose, 0.5–4.5(–5) × 0.5–3 dm, glabrous or glandular, grayish. Stems matted or spreading, occasionally with persistent leaf bases, up to 1/5 height of plant; caudex stems matted or absent; aerial flowering stems scapelike, erect, slender, solid, not fistulose, (0.5–)1.5–4.5(–5) dm, glabrous, rarely slightly floccose, or glandular below inflorescence. Leaves basal, fasciculate in terminal tufts, sometimes 1 per node and sheathing up stem 1–4 cm; petiole 1–4(–5) cm, tomentose; blade oblanceolate or lanceolate to elliptic, oblong, or ovate to obovate, (0.6–)1–3.5(–4) × (0.3–)0.5–1.5 cm, densely tomentose abaxially, only slightly less so adaxially, margins plane. Inflorescences capitate, 1.5–2.5 cm; branches absent; bracts 3, scalelike, narrowly triangular, 1–2.5 mm. Peduncles absent or erect, slender, 0.1–0.5(–0.6) cm, glabrous. Involucres 5–8 per cluster, turbinate to campanulate, 3.5–5.5(–6) × (1.5–)2–4.5(–5) mm, rigid, floccose at least on teeth, occasionally glandular, rarely glabrous; teeth 6–8, erect, 0.5–1 mm. Flowers 1.5–3 mm; perianth yellow, glabrous or weakly glandular abaxially; tepals connate proximally, monomorphic, broadly oblong; stamens exserted, 2.5–3.5(–4) mm; filaments pilose proximally. Achenes light brown, (1.5–)2–3 mm, glabrous.

Discussion

Varieties 2 (2 in the flora).

Variety ochrocephalum is occasionally seen in rock gardens, and var. calcareum is worthy of cultivation.

Selected References

None.

Key

1 Scapes glandular at least proximal to inflorescence; ne California, nw Nevada Eriogonum ochrocephalum var. ochrocephalum
1 Scapes glabrous or, rarely, slightly floccose; sw Idaho, se Oregon, wc Nevada Eriogonum ochrocephalum var. calcareum