Eriogonum umbellatum var. minus

I. M. Johnston

Bull. S. Calif. Acad. Sci. 17: 64. 1918

Common names: Old Baldy sulphur flower
Synonyms: Eriogonum umbellatum subsp. minus (I. M. Johnston) Munz
Treatment appears in FNA Volume 5. Treatment on page 345. Mentioned on page 337, 349.
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Illustrator: John Myers
Herbs, dense, prostrate mats, 0.3–1 × 0.5–2 dm. Aerial flowering stems spreading, 0.2–0.8(–1.5) cm, tomentose, without one or more leaflike bracts ca. midlength. Leaves in tight rosettes; blade usually round-ovate, 0.3–0.8(–1) × 0.3–0.8 cm, densely lanate on both surfaces, margins plane. Inflorescences usually compact-umbellate; branches 0.5–2.5 cm, tomentose, without a whorl of bracts ca. midlength; involucral tubes 1.5–2 mm, lobes 1.5–2 mm. Flowers (2.5–)4–6 mm; perianth lemon yellow to yellowish red, becoming red to rose-red.

Phenology: Flowering Jul–Sep.
Habitat: Gravelly to rocky or talus slopes and ridges, sagebrush communities, montane to subalpine conifer woodlands
Elevation: (1800-)2400-3100 m


Variety minus is a rare and localized taxon in the San Bernardino and San Gabriel mountains of Los Angeles and San Bernardino counties. It is one of the more distinctive expressions of the species and is attractive in the garden. A Parish collection (Aug 1915, DS) supposedly from the San Jacinto Mountains of Riverside County is presumed to be mislabeled. This variety is closely related to </i>var.<i> bahiiforme.



Lower Taxa

No lower taxa listed.

AuthorJames L. Reveal +
AuthorityI. M. Johnston +
Common nameOld Baldy sulphur flower +
DistributionCalif. +
Elevation(1800-)2400-3100 m +
HabitatGravelly to rocky or talus slopes and ridges, sagebrush communities, montane to subalpine conifer woodlands +
IllustratorJohn Myers +
PhenologyFlowering Jul–Sep. +
Publication titleBull. S. Calif. Acad. Sci. +
Publication year1918 +
ReferenceNone +
Source xml grained fna xml/V5/V5 693.xml +
SynonymsEriogonum umbellatum subsp. minus +
Taxon familyPolygonaceae +
Taxon nameEriogonum umbellatum var. minus +
Taxon parentEriogonum umbellatum +
Taxon rankvariety +
VolumeVolume 5 +