Eutrochium purpureum var. purpureum
IllustratedEndemic
Synonyms: Eupatorium amoenum Pursh Eupatorium falcatum Michaux Eupatorium fuscorubrum Walter Eupatorium harnedii Steele ex Harned Eupatorium purpureum var. album (Pursh) A. Gray Eupatorium purpureum var. amoenum (Michaux) Britton Eupatorium purpureum var. falcatum Alph. Wood Eupatorium purpureum var. ovatum (Lamarck) Alph. Wood Eupatorium purpureum var. verticillatum (Pursh) Farwell Eupatorium trifoliatum Eupatorium trifoliatum var. amoenum
Treatment appears in FNA Volume 21. Treatment on page 477.
Leaves: petioles glabrous; abaxial faces usually glabrous, sometimes sparsely to densely hairy along major veins (hairs fine, simple, 1-cellular). 2n = 20.
Phenology: Flowering late summer–early fall.
Habitat: Rich, open deciduous woodlands, woodland borders, and thickets, wooded ravines, near bases of slopes bordering wet grounds, partial or deep shade
Elevation: 10–1200 m
Distribution
Ont., Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.
Discussion
East of the Mississippi River, abaxial leaf faces of var. purpureum tend to be glabrous and rarely pubescent along the major veins. West of the Mississippi (and in the xeric sandhills of South Carolina), abaxial leaf faces are commonly densely pubescent along the major veins.
Selected References
None.
Lower Taxa
None.
"fine" is not a number.
... more about "Eutrochium purpureum var. purpureum"
introrse +
connate +
scarious +
absent +
hirsute +
papillate +
convex +
continuous +
puberulent +
tapered +
veined +
ovate;deltate-ovate +
(4-)5-angled;10-ribbed +
less filiform;clavate +
stigmatic +
barbellate +
25;40 +
coarse +
absent +
not 2-lipped +
monomorphic +
5-ribbed +
scabrellous +
prismatic +
3mm;4.5mm +
straight +
distinct +
proximal +
5;7 +
bisexual +
dispersed +
singly +
Rich, open deciduous woodlands, woodland borders, and thickets, wooded ravines, near bases of slopes bordering wet grounds, partial or deep shade +
discoid +
indeterminate +
homogamous +
Present +
purplish +
surrounding +
cylindric +
petiolate +
cauline +
serrate +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
tough +
thick +
connate +
glabrous +
1-nerved +
persistent +
distinct +
unequal +
equal +
Sida +
2004 +
absent +
epaleate +
convex;flat +
fibrous +
exalbuminous +
modifed +
1;5;6 +
alternate +
erect +
2-branched +
hirsutulous +
papillate +
Eupatorium amoenum +, Eupatorium falcatum +, Eupatorium fuscorubrum +, Eupatorium harnedii +, Eupatorium purpureum var. album +, Eupatorium purpureum var. amoenum +, Eupatorium purpureum var. falcatum +, Eupatorium purpureum var. ovatum +, Eupatorium purpureum var. verticillatum +, Eupatorium trifoliatum + and Eupatorium trifoliatum var. amoenum +
Eutrochium purpureum var. purpureum +
Eutrochium purpureum +
variety +
perennial +