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.

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

V5 1158-distribution-map.gif

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

Discussion

Selected References

None.

Lower Taxa

None.

"/2" is not declared as a valid unit of measurement for this property.

smooth +  and obscurely longitudinally reticulate +
light yellow;greenish brown +
exserted +  and included +
pink +  and purple +
elliptic +  and oblong +
acute;acuminate +
Mihai Costea +, François J. Tardif +  and Harold R. Hinds† +
(Greene) J. C. Hickman +
not stipelike +
Polygonum kelloggii +
narrowly linear;subround +
coriaceous +
foliaceous +  and perfoliate +
linear +  and linear-lanceolate +
0.7 cm7 mm <br />0.007 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
just below the soil surface or and above the soil surface +  and spreading +
Kellogg’s knotweed +
1-3-flowered +
B.C. +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, Utah +, Wash. +  and Wyo. +
1300-3300 m +
reticulate +  and smooth +
dull +  and shiny +
subequal +
adnate +, free +  and distinct +
semi-open +  and open +
disarticulating +  and solid +
decumbent to erect +  and prostrate +
unwinged +  and winged +
black +, red +, brown +  and yellowish +
exserted +  and included +
pubescent +  and glabrous +
spheroidal +, 4-gonous +, lenticular +, biconvex +, discoid +, 3-gonous +  and 2-gonous +
Mountain meadows, seeps, vernal pools, dry subalpine slopes +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
nonmembranous +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
articulated +
distributed +
deciduous +
not rugulose +
revolute +  and flat +
not scarious +
with 2 lateral branches +  and unbranched +
swollen +
silvery +, white +  and hyaline +
disintegrating +
deciduous +  and persistent +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
coriaceous +  and membranous +
somewhat larger +
anatropous +, , +  and orthotropous +
accrescent +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
spreading;erect +
greenish white;pink +
campanulate +  and urceolate +
nonaccrescent +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
fleshy +, indurate +  and membranous +
not +  and articulated +
Flowering Jun–Sep. +
(2-)3(-4)-carpellate +
papillose-scabridulous +  and smooth +
slender;stout +
woody +  and fibrous +
wiry +, simple +  and branched +
20 cm200 mm <br />0.2 m <br /> (25 cm250 mm <br />0.25 m <br />) +
zigzagged +  and straight +
papillous-scabridulous +
4-gonous +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
2 +  and 3 +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
2-lobed +  and cylindric +
coriaceous +  and membranous +
connate +  and distinct +
spreading;erect +
Polygonum minutissimum +  and Polygonum unifolium +
Polygonum polygaloides subsp. kelloggii +
Polygonum polygaloides +
subspecies +
overlapping +
white +  and pink +
connate +  and distinct +
keeled +, navicular +  and oblong-lanceolate +
coriaceous +
persistent +
membranous +
pubescent +  and glabrous +
inconspicuous +
heterophyllous +  and homophyllous +