Difference between revisions of "Eriogonum novonudum"
Leafl. W. Bot. 4: 178. 1945.
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|elevation=700-1200 m | |elevation=700-1200 m | ||
|distribution=Oreg. | |distribution=Oreg. | ||
| − | |discussion=<p>Eriogonum novonudum is known only from a few scattered populations primarily in the Leslie Gulch area of Malheur County. This tall, openly branched species is easily distinguished from the related E. ochrocephalum var. calcareum, in which the inflorescence is reduced to a capitate cluster of involucres.</p> | + | |discussion=<p><i>Eriogonum novonudum</i> is known only from a few scattered populations primarily in the Leslie Gulch area of Malheur County. This tall, openly branched species is easily distinguished from the related <i>E. ochrocephalum </i>var.<i> calcareum</i>, in which the inflorescence is reduced to a capitate cluster of involucres.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1945 | |publication year=1945 | ||
|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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V5/V5_553.xml |
|subfamily=Polygonaceae subfam. Eriogonoideae | |subfamily=Polygonaceae subfam. Eriogonoideae | ||
|genus=Eriogonum | |genus=Eriogonum | ||
Revision as of 17:39, 18 September 2019
Herbs, erect, not scapose, (3–)3.5–9 × 0.5–1 dm, glabrous, grayish. Stems spreading, without persistent leaf bases, up to 1/5 height of plant; caudex stems absent; aerial flowering stems erect, slender, solid, not fistulose, 1.5–3.5(–4) dm, glabrous. Leaves basal, 1 per node; petiole (1–)2–4(–6) cm, tomentose; blade spatulate to narrowly obovate, 1–3(–4) × 0.3–0.8(–1.3) cm, densely white-tomentose on both surfaces, margins plane. Inflorescences elongate cymose-umbellate, 8–45(–50) × 5–10 cm; branches dichotomous, glabrous; bracts 3–5, scalelike, triangular, 1–2 mm. Peduncles absent. Involucres 2–5 per cluster, turbinate, 3–5 × 2–3 mm, rigid, glabrous; teeth 6–8, erect, 0.5–1 mm. Flowers (1.5–)2.5–3.5 mm; perianth dull greenish white to pale yellow, glabrous; tepals connate proximally, monomorphic, lanceolate to oblong; stamens exserted, 3–5 mm; filaments pilose proximally. Achenes light brown, 2.5–3 mm, glabrous.
Phenology: Flowering May–Sep.
Habitat: Sandy clay slopes and washes, saltbush and sagebrush communities, juniper woodlands
Elevation: 700-1200 m
Discussion
Eriogonum novonudum is known only from a few scattered populations primarily in the Leslie Gulch area of Malheur County. This tall, openly branched species is easily distinguished from the related E. ochrocephalum var. calcareum, in which the inflorescence is reduced to a capitate cluster of involucres.
Selected References
None.