Corispermum americanum var. americanum

Treatment appears in FNA Volume 4. Treatment on page 316.

Inflorescences interrupted or condensed distally. Fruits (2.3–) 2.5–3.5 mm; wing usually 0.2–0.3 mm wide (occasionally fruits almost wingless in some southwestern plants).


Phenology: Flowering late summer–fall.
Habitat: Sand dunes, sandy and gravely shores, sandy waste places, fields
Elevation: 100-2000 m

Distribution

Alta., B.C., Man., Ont., Que., Sask., Ariz., Ark., Calif., Colo., Idaho, Ill., Ind., Kans., Minn., Mo., Mont., Nebr., Nev., N.J., N.Mex., N.Y., N.Dak., Ohio, Okla., Oreg., S.Dak., Tex., Utah, Wash., Wis., Wyo., n Mexico (Chihuahua), probably Europe (locally and confused with C. nitidum)

Discussion

Selected References

None.

Lower Taxa

None.

"broadest" is not a number.

orbiculate +, elliptic +, obovate +, ovate +, lenticular +, , +, concave +, plane +  and convex to almost +
verrucose +
Sergei L. Mosyakin +
(Nuttall) Nuttall +
slippery +
aromatic +
10 cm100 mm <br />0.1 m <br /> (35 cm350 mm <br />0.35 m <br />) +
Corispermum hyssopifolium var. americanum +
small whitish +
convolute +, flat +, filiform +, linear +, linear-lanceolate +  and lanceolate +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
persistent +  and deciduous +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
linear-lanceolate +, lanceolate +  and ovate-lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
reddish-brown +, black +, brown +  and green +
Alta. +, B.C. +, Man. +, Ont. +, Que. +, Sask. +, Ariz. +, Ark. +, Calif. +, Colo. +, Idaho +, Ill. +, Ind. +, Kans. +, Minn. +, Mo. +, Mont. +, Nebr. +, Nev. +, N.J. +, N.Mex. +, N.Y. +, N.Dak. +, Ohio +, Okla. +, Oreg. +, S.Dak. +, Tex. +, Utah +, Wash. +, Wis. +, Wyo. +, n Mexico (Chihuahua) +  and probably Europe (locally and confused with C. nitidum) +
100-2000 m +
horseshoe--shaped +
symmetric +, or +  and uniseriate +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
brown +, light-brown +, greenish brown +  and yellowish-brown +
2.5mm;4.5mm +
dull +  and shiny +
obovate-elliptic +, obovate +, , +, concave +, plane +  and convex +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Sand dunes, sandy and gravely shores, sandy waste places, fields +
condensed +  and interrupted +
clavate +  and linear +
3.5 cm35 mm <br />0.035 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
erose +  and entire +
erose-denticulate +, undulate +  and entire +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
nonadherent +  and adherent +
accrescent +
papery +  and chartaceous +
Flowering late summer–fall. +
not accrescent +  and small +
Trans. Amer. Philos. Soc., n. s. +
pointing +  and ascending +
basal +, median +  and position +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
characteristic +
verrucate +  and striate +
rounded +  and flattened +
Illustrated +
cylindric +
1 (?) +  and 3 (?) +
not armed +, not jointed +  and branched +
opposite +  and alternate +
ascending +  and erect +
not fleshy +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Corispermum imbricatum +, Corispermum marginale +  and Corispermum simplicissimum +
Corispermum americanum var. americanum +
Corispermum americanum +
variety +
whitish +  and reddish-brown spots +
polygamous +, dioecious +  and monoecious +
0.2mm;0.3mm +