Difference between revisions of "Helianthus pauciflorus subsp. pauciflorus"
Common names: Stiff sunflower hélianthe rigide
Endemic
Synonyms: Helianthus laetiflorus var. rigidus (Cassini) Fernald Helianthus rigidus (Cassini) Desfontaines
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Latest revision as of 23:18, 29 July 2020
Plants 80–200 cm. Leaves usually alternate distally; blades oblong-lanceolate to lanceovate, 8–27 cm, apices acuminate.
Phenology: Flowering late summer–fall.
Habitat: Dry to moderately wet prairies, open places
Elevation: 50–600+ m
Distribution
Alta., B.C., Man., Ont., P.E.I., Que., Sask., Ark., Conn., Ga., Ill., Ind., Iowa, Kans., Ky., Maine, Mass., Mich., Minn., Mo., Mont., Nebr., N.H., N.J., N.Dak., Okla., R.I., S.Dak., Tex., Vt., Va., Wis.
Discussion
Subspecies pauciflorus is introduced in Ontario, and probably in all eastern Canada.
Selected References
None.
Lower Taxa
None.
... more about "Helianthus pauciflorus subsp. pauciflorus"
dark +
introrse +
connate +
herbaceous +
acuminate +
scarious +
absent +
hirsute +
papillate +
continuous +
cuneate +
3-nerved +
oblong-lanceolate;lanceovate +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
absent +
zygomorphic +
monomorphic +
dimorphic +
glabrate +
5mm;6mm +
staminate +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
discoid +
indeterminate +
1;10 +
surrounding +
hemispheric +
alternate +
basal +
yellow;reddish +
triangular +
2-carpellate +
inferior +
attached +
anatropous +
shallowly 3-toothed;subentire +
persistent +
falling +
absent +
coroniform +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
unequal +
Gen. N. Amer. Pl. +
1818 +
neuter +
absent +
sterile +
paleate +
flat;slightly convex +
fibrous +
shorter +
aristate +
exalbuminous +
modifed +
2;3 +
aristate +
Endemic +
alternate +
branched +
erect +
scabro-hispid +
continuous +
2-branched +
papillate +
Helianthus pauciflorus subsp. pauciflorus +
Helianthus pauciflorus +
subspecies +
campanulate +
equaling +
shorter +
perennial +