Polygonum polygaloides subsp. kelloggii

(Greene) J. C. Hickman

Madroño 31: 251. 1984.

Common names: Kellogg’s knotweed
Endemic
Basionym: Polygonum kelloggii Greene Fl. Francisc., 134. 1891
Synonyms: Polygonum minutissimum L. O. Williams Polygonum unifolium Small ex Rydberg
Treatment appears in FNA Volume 5. Treatment on page 567. Mentioned on page 565.
Revision as of 23:29, 27 May 2020 by imported>Volume Importer

Stems 2–15 cm. Inflorescences mostly terminal, prolonged almost to base of stems, ovoid, 3–15 × 5–15 mm, or ± continuous; bracts ± patent, linear to linear-lanceolate, 7–25 mm, soft, margins flat or revolute, green, not scarious; lateral and midveins inconspicuous. Flowers: perianth 1.5–2.3 mm; tube 19–34% of perianth length; tepals pink or white; perianth tube and base of tepals smooth; stamens 3. Achenes light yellow to greenish brown, ovate, 1.3–1.7 mm, smooth to obscurely longitudinally reticulate, shiny.


Phenology: Flowering Jun–Sep.
Habitat: Mountain meadows, seeps, vernal pools, dry subalpine slopes
Elevation: 1300-3300 m

Distribution

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B.C., Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
Mihai Costea +, François J. Tardif +  and Harold R. Hinds† +
(Greene) J. C. Hickman +
Polygonum kelloggii +
Kellogg’s knotweed +
B.C. +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, Utah +, Wash. +  and Wyo. +
1300-3300 m +
Mountain meadows, seeps, vernal pools, dry subalpine slopes +
Flowering Jun–Sep. +
Polygonum minutissimum +  and Polygonum unifolium +
Polygonum polygaloides subsp. kelloggii +
Polygonum polygaloides +
subspecies +