Silphium terebinthinaceum var. terebinthinaceum

Endemic
Synonyms: Silphium rumicifolium Small Silphium terebinthinaceum var. lucy-brauniae
Treatment appears in FNA Volume 21. Treatment on page 79. Mentioned on page 78.

Leaf-blades not lobed (margins entire or toothed). 2n = 14.


Phenology: Flowering mid summer–early fall.
Habitat: Wet or dry prairies, fens, disturbed sites free of underbrush
Elevation: 100–500 m

Distribution

V21-173-distribution-map.gif

Ont., Ala., Ark., Ga., Ill., Ind., Iowa, Ky., Mich., Miss., Mo., Nebr., N.Y., N.C., Ohio, S.C., Tenn., Va., Wis.

Discussion

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

not tailed +, rounded +  and obtuse +
connate +  and distinct +
obtuse;acute +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
racemiform +  and paniculiform +
indeterminate +  and determinate +
Jennifer A. Clevinger +
Jacquin +
bristlelike +
coroniform +
truncate +, round +, hastate +, cordate +  and attenuate +
compound +  and simple +
3 cm30 mm <br />0.03 m <br /> (40 cm400 mm <br />0.4 m <br />) +
lobed;sagittate;ovate;sagittate;ovate;lanceolate;deltate;cordate +
1 cm10 mm <br />0.01 m <br /> (40 cm400 mm <br />0.4 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
sessile +  and petiolate +
0.7 cm7 mm <br />0.007 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
hairy +  and glabrous +
less orbiculate +  and obovate or cuneate +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
fertile +  and bisexual +
fertile +  and bisexual +
Ont. +, Ala. +, Ark. +, Ga. +, Ill. +, Ind. +, Iowa +, Ky. +, Mich. +, Miss. +, Mo. +, Nebr. +, N.Y. +, N.C. +, Ohio +, S.C. +, Tenn. +, Va. +  and Wis. +
100–500 m +
scabrous +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Wet or dry prairies, fens, disturbed sites free of underbrush +
in cymiform , corymbiform , paniculiform , racemiform or spiciform , arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
campanulate;hemispheric +
sessile +  and petiolate +
alternate +, subopposite +, opposite +  and whorled +
cauline +  and basal +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
toothed +  and entire +
2-carpellate +
persistent +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Flowering mid summer–early fall. +
23 +  and 33 +
unequal +  and subequal +
Hort. Bot. Vindob. +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Silphium rumicifolium +  and Silphium terebinthinaceum var. lucy-brauniae +
Silphium terebinthinaceum var. terebinthinaceum +
Silphium terebinthinaceum +
variety +
cylindric +
cylindric +
shorter to longer than campanulate +
entire +  and toothed +
20 cm200 mm <br />0.2 m <br /> (250 cm2,500 mm <br />2.5 m <br />) +
40 cm400 mm <br />0.4 m <br /> (100 cm1,000 mm <br />1 m <br />) +