Myosurus apetalus var. borealis

Whittemore

Novon 4: 78. 1994.

EndemicIllustrated
Treatment appears in FNA Volume 3.

Flowers: sepals 1-veined, scarious margins broad. Heads of achenes 4-9 mm; outer face of achene narrowly elliptic or rectangular.


Phenology: Flowering spring (May).
Habitat: Flats and marshes, often in sagebrush
Elevation: 600-1500 m

Distribution

V3 302-distribution-map.gif

Alta., B.C., Sask., Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
rectangular +  and elliptic +
Alan T. Whittemore +
Whittemore +
cuneate +, truncate +  and cordate +
straight +
0.4-1 times as long as body +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (4 cm40 mm <br />0.04 m <br />) +
oblanceolate +  and linear +
globose;cylindric +
Alta. +, B.C. +, Sask. +, Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
600-1500 m +
sessile +  and pedicellate +
showy +  and inconspicuous +
sessile +  and aggregate +
Flats and marshes, often in sagebrush +
0.4 cm4 mm <br />0.004 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
axillary +  and terminal +
whorled +, opposite +  and alternate +
tapering +  and filiform +
palmate +  and pinnate +
incised;toothed;incised;toothed;entire +
2-5 times as high as wide +
0.1 cm1 mm <br />0.001 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1-2 times as long as blade +
distinct +
conspicuous +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Flowering spring (May). +
10 +  and 400 +
0.9 cm9 mm <br />0.009 m <br /> (10.5 cm105 mm <br />0.105 m <br />) +
not arillate +  and stalked +
with scarious margins;green +
not persistent +
distinct +
3 +  and 6 +
oblong +  and elliptic lanceolate or oblanceolate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
faceted +
Endemic +  and Illustrated +
persistent +
Myosurus apetalus var. borealis +
Myosurus apetalus +
variety +
herbaceous +  and woody +