Shinnersoseris rostrata

(A. Gray) Tomb

Sida 5: 186. 1974.

Common names: Beaked or annual skeleton-weed
IllustratedEndemic
Basionym: Lygodesmia juncea var. rostrata A. Gray Proc. Acad. Nat. Sci. Philadelphia 15: 69. 1864
Synonyms: Lygodesmia rostrata (A. Gray) A. Gray
Treatment appears in FNA Volume 19. Treatment on page 369.

Leaves: blades 6–15 cm × 2–4 mm, distalmost reduced to scales. Calyculus bractlets 1–5 mm. Involucres 12–18 × 4–5 mm. Phyllaries 16–20 mm, faces glabrous. Corollas 15–16 mm. Cypselae 8–10 mm; pappi 6–8 mm. 2n = 12.


Phenology: Flowering Jul–Sep.
Habitat: Sandy soils of stream banks, dunes, and sand hills in prairies
Elevation: 300–1500 m

Distribution

V19-590-distribution-map.gif

Alta., Man., Sask., Colo., Iowa, Kans., Minn., Nebr., N.Dak., Okla., S.Dak., Tex., Utah, Wyo.

Discussion

Shinnersoseris rostrata grows in the Prairies and Great Plains region of North America.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Shinnersoseris rostrata"
constricted +
scarious +
ovate +  and lanceolate +
paniculiform +  and corymbiform +
indeterminate +  and determinate +
David J. Bogler +
(A. Gray) Tomb +
decurrent +
Lygodesmia juncea var. rostrata +
compound +  and simple +
6 cm60 mm <br />0.06 m <br /> (15 cm150 mm <br />0.15 m <br />) +
distalmost +
linear;filiform +
reduced +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
tuberculate +, rugose +, muricate +  and smooth +
filiform +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Beaked or annual skeleton-weed +
zygomorphic +, actinomorphic +  and (3-)5-merous +
lavender +  and pale-purple +
1.5 cm15 mm <br />0.015 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
tan +  and pale green +
subcylindric +  and more or less fusiform +
Alta. +, Man. +, Sask. +, Colo. +, Iowa +, Kans. +, Minn. +, Nebr. +, N.Dak. +, Okla. +, S.Dak. +, Tex. +, Utah +  and Wyo. +
300–1500 m +
winged +  and beaked +
dispersed +
Sandy soils of stream banks, dunes, and sand hills in prairies +
indeterminate +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
divided +, lobed +  and dentate +
2-carpellate +
barbellulate +  and smooth +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering Jul–Sep. +
connate +  and distinct +
subequal +  and unequal +
1.6 cm16 mm <br />0.016 m <br /> (2 cm20 mm <br />0.02 m <br />) +
flat;convex +
8 +  and 10 +
exalbuminous +
Illustrated +  and Endemic +
branched +  and simple +
appendaged +  and truncate +
papillate +
Lygodesmia rostrata +
Shinnersoseris rostrata +
Shinnersoseris +
species +
5 cm50 mm <br />0.05 m <br /> (85 cm850 mm <br />0.85 m <br />) +
shrub +  and subshrub +