familyPolygonaceae
subfamilyPolygonaceae subfam. Eriogonoideae
genusEriogonum
subgenusEriogonum subg. Eucycla
speciesEriogonum ovalifolium
Difference between revisions of "Eriogonum ovalifolium var. eximium"
Mentzelia 1: 19. 1976.
Common names: Slide Mountain cushion wild buckwheat
Endemic
Basionym: Eriogonum eximium Tidestrom Proc. Biol. Soc. Wash. 36: 181. 1923
Synonyms: Eriogonum ovalifolium subsp. eximium (Tidestrom) S. Stokes
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|common_names=Slide Mountain cushion wild buckwheat | |common_names=Slide Mountain cushion wild buckwheat | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Eriogonum eximium | |name=Eriogonum eximium | ||
|authority=Tidestrom | |authority=Tidestrom | ||
| + | |rank=species | ||
|publication_title=Proc. Biol. Soc. Wash. | |publication_title=Proc. Biol. Soc. Wash. | ||
|publication_place=36: 181. 1923 | |publication_place=36: 181. 1923 | ||
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|name=Eriogonum ovalifolium subsp. eximium | |name=Eriogonum ovalifolium subsp. eximium | ||
|authority=(Tidestrom) S. Stokes | |authority=(Tidestrom) S. Stokes | ||
| + | |rank=subspecies | ||
}} | }} | ||
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum subg. Eucycla;Eriogonum ovalifolium;Eriogonum ovalifolium var. eximium | |hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum subg. Eucycla;Eriogonum ovalifolium;Eriogonum ovalifolium var. eximium | ||
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|elevation=1700-2500 m | |elevation=1700-2500 m | ||
|distribution=Calif.;Nev. | |distribution=Calif.;Nev. | ||
| − | |discussion=<p>Variety eximium is known only from the Carson Range in Carson City, Douglas, and Washoe counties, <i>Nevada</i>, and from the Job’s Peak area of Alpine County, California. The Slide Mountain wild buckwheat morphologically approaches higher-elevation populations of < | + | |discussion=<p>Variety eximium is known only from the Carson Range in Carson City, Douglas, and Washoe counties, <i>Nevada</i>, and from the Job’s Peak area of Alpine County, California. The Slide Mountain wild buckwheat morphologically approaches higher-elevation populations of <i></i>var.<i> nivale</i> in the Carson Range, and the edaphically restricted <i></i>var.<i> williamsiae</i> from Steamboat Springs. In addition, there is a series of populations in Siskiyou County, California, which approaches <i></i>var.<i> eximium</i>. At this time, a definite disposition of those northern California populations has not been made. On infrequent occasions, the distinct brown leaf-blade margins are absent from individuals within an otherwise normal population. The variety is an ideal rock-garden plant, although it is slow to grow to the size seen in the field.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Eriogonum ovalifolium var. eximium | name=Eriogonum ovalifolium var. eximium | ||
| − | |||
|authority=(Tidestrom) J. T. Howell | |authority=(Tidestrom) J. T. Howell | ||
|rank=variety | |rank=variety | ||
| Line 55: | Line 60: | ||
|publication title=Mentzelia | |publication title=Mentzelia | ||
|publication year=1976 | |publication year=1976 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_651.xml |
|subfamily=Polygonaceae subfam. Eriogonoideae | |subfamily=Polygonaceae subfam. Eriogonoideae | ||
|genus=Eriogonum | |genus=Eriogonum | ||
Latest revision as of 23:12, 5 November 2020
Plants 1–3 dm wide. Leaf blades elliptic or spatulate to oval, (0.3–)0.5–1.5(–2) cm, usually densely lanate, margins brownish. Scapes erect, 1–5(–7.5) cm, tomentose. Inflorescences capitate, 1–2.5 cm wide; branches absent. Involucres 3–10 per cluster, 4–5(–6.5) mm. Flowers 4–5 mm; perianth white.
Phenology: Flowering Jun–Sep.
Habitat: Granitic sandy or gravelly to rocky or even talus slopes, sagebrush communities, montane conifer woodlands
Elevation: 1700-2500 m
Discussion
Variety eximium is known only from the Carson Range in Carson City, Douglas, and Washoe counties, Nevada, and from the Job’s Peak area of Alpine County, California. The Slide Mountain wild buckwheat morphologically approaches higher-elevation populations of var. nivale in the Carson Range, and the edaphically restricted var. williamsiae from Steamboat Springs. In addition, there is a series of populations in Siskiyou County, California, which approaches var. eximium. At this time, a definite disposition of those northern California populations has not been made. On infrequent occasions, the distinct brown leaf-blade margins are absent from individuals within an otherwise normal population. The variety is an ideal rock-garden plant, although it is slow to grow to the size seen in the field.
Selected References
None.
Lower Taxa
None.