Chenopodium subglabrum

(S. Watson) A. Nelson

Bot. Gaz. 34: 362. 1902.

Endemic
Basionym: Chenopodium leptophyllum var. subglabrum S. Watson Proc. Amer. Acad. Arts 9: 95. 1874
Treatment appears in FNA Volume 4. Treatment on page 289. Mentioned on page 276.

Stems erect or semierect, branched, 1–5.5 dm, glabrous or sparsely farinose. Leaves nonaromatic; petiole to 1 cm; blade linear, 1-veined, 1–3 (–5) × 0.1–0.2 (–0.4) cm, somewhat fleshy, base cuneate, margins entire, apex acute to acuminate, glabrous. Inflorescences glomerules in terminal and axillary panicles, 6–25 × 5–20 cm, widely spaced, maturing at different times; bracts variable. Flowers: perianth segments 5, connate into 0.3–0.4 mm tube; lobes ovate or orbicular-obovate, 1–1.4 mm, apex obtuse or rounded, cucullate, carinate, sparsely farinose, largely covering fruit at maturity; stamens 5; stigmas 2, 0.1 mm. Achenes ovoid; pericarp nonadherent, smooth. Seeds ovoid, 1.2–1.6 mm diam., margins obtuse with narrow rim; seed-coat black, smooth, shiny. 2n = 18.


Phenology: Fruiting mid summer–fall.
Habitat: Sandy areas, particularly sand bars in rivers and in sandy blowouts near river banks
Elevation: 400-1400 m

Distribution

V4 544-distribution-map.gif

Alta., Man., Sask., Colo., Iowa, Mont., Nebr., Nev., N.Dak., S.Dak., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"narrower" is not a number."thick" is not a number."dm" is not declared as a valid unit of measurement for this property.

... more about "Chenopodium subglabrum"
dehiscent +  and indehiscent +
farinose +  and glabrous +
Carinate (?) +, Cucullate (?) +, Rounded (?) +, Obtuse (?) +, Acute (?) +  and Acuminate (?) +
Steven E. Clemants +  and Sergei L. Mosyakin +
(S. Watson) A. Nelson +
slippery +
aromatic +
cuneate +
Chenopodium leptophyllum var. subglabrum +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
flattened +, rhombic +, trullate +, triangular +, ovate +, lanceolate +, oblong +  and linear +
0.1cm;0.2cm +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
Alta. +, Man. +, Sask. +, Colo. +, Iowa +, Mont. +, Nebr. +, Nev. +, N.Dak. +, S.Dak. +, Utah +, Wash. +  and Wyo. +
400-1400 m +
hippocrepiform +  and annular +
symmetric +, or +  and uniseriate +
dehiscent +  and indehiscent +
Sandy areas, particularly sand bars in rivers and in sandy blowouts near river banks +
small white +
inflated +
6 cm60 mm <br />0.06 m <br /> (25 cm250 mm <br />0.25 m <br />) +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
sessile +  and petiolate +
nonaromatic +
not fleshy +
orbicular-obovate +  and ovate +
not winged +  and winged +
glabrous +  and farinose +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
nonadherent +
chartaceous +  and membranaceous +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Fruiting mid summer–fall. +
pointing +  and ascending +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
warty +, rugulate +  and smooth +
0.12 cm1.2 mm <br />0.0012 m <br /> (?) +  and 0.16 cm1.6 mm <br />0.0016 m <br /> (?) +
compound +, dense +  and loose +
cylindric +
not imbricate +
keeled +  and rounded +
opposite +  and alternate +
semierect +  and erect +
not fleshy +
filiform +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Chenopodium subglabrum +
Chenopodium subsect. Leptophylla +
species +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
dehiscent +  and indehiscent +
glabrous +  and pubescent +
polygamous +, dioecious +  and monoecious +
not imbricate +
keeled +  and rounded +