familyPolygonaceae
subfamilyPolygonaceae subfam. Eriogonoideae
genusEriogonum
subgenusEriogonum subg. Oligogonum
speciesEriogonum umbellatum
Difference between revisions of "Eriogonum umbellatum var. cladophorum"
Bull. Soc. Roy. Bot. Belgique 42: 198. 1906.
Common names: Yellowstone sulphur flower
Synonyms: Eriogonum rydbergii Greene
Treatment appears in FNA Volume 5. Treatment on page 339.
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|name=Eriogonum rydbergii | |name=Eriogonum rydbergii | ||
|authority=Greene | |authority=Greene | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum subg. Oligogonum;Eriogonum umbellatum;Eriogonum umbellatum var. cladophorum | |hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum subg. Oligogonum;Eriogonum umbellatum;Eriogonum umbellatum var. cladophorum | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Eriogonum umbellatum var. cladophorum | name=Eriogonum umbellatum var. cladophorum | ||
| − | |||
|authority=Gandoger | |authority=Gandoger | ||
|rank=variety | |rank=variety | ||
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|publication year=1906 | |publication year=1906 | ||
|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/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V5/V5_675.xml |
|subfamily=Polygonaceae subfam. Eriogonoideae | |subfamily=Polygonaceae subfam. Eriogonoideae | ||
|genus=Eriogonum | |genus=Eriogonum | ||
Revision as of 22:55, 16 December 2019
Herbs, compact mats, 1–2 × 2–5 dm. Aerial flowering stems erect, 1–2 dm, tomentose to densely floccose, without one or more leaflike bracts ca. midlength. Leaves in tight rosettes; blade usually elliptic to ovate, 1–2 × 0.5–1.5 cm, lanate to densely tomentose on both surfaces, margins plane. Inflorescences umbellate; branches 0.3–2.5 cm, without a whorl of bracts about midlength; involucral tubes 2–3 mm, lobes 1.5–3 mm. Flowers 4–7 mm; perianth bright yellow.
Phenology: Flowering Jun–Sep.
Habitat: Sandy to gravelly flats, sagebrush communities, montane conifer woodlands
Elevation: 2000-2300 m
Discussion
Variety cladophorum is a rare and localized expression known from three locations (Upper Geyser Basin, Old Faithful, and Madison Junction) within Yellowstone National Park, Teton County.
Selected References
None.
Lower Taxa
None.