The Morton Arboretum
The Field Museum
Chicago Botanic Garden
Additional Partners
Log In
New Account
Sitemap
Home
Search Collections
Map Search
Browse Images
Inventories
Aquatic Invasive Plant Guide
Naturalized flora of The Morton Arboretum
vPlants Checklist
Chicago Region Checklists and Inventories
Interactive Tools
vPlants Dynamic Key
Dynamic Checklist
Dynamic Key
Helianthus pauciflorus subsp. pauciflorus
Family:
Asteraceae
Stiff Sunflower
[
Helianthus laetiflorus var. rigidus
(Cass.) Fernald,
more
Helianthus missouriensis
Schwein. ex Nutt.,
Helianthus rigidus
(Cass.) Desf.,
Helianthus rigidus subsp. rigidus
,
Helianthus rigidus var. rigidus
(Cass.) Desf.
]
FNA
Resources
Edward E. Schilling in Flora of North America (vol. 21)
Plants
80-200 cm.
Leaves
usually alternate distally; blades oblong-lanceolate to lance-ovate, 8-27 cm, apices acuminate.
Flowering late summer-fall. Dry to moderately wet prairies, open places; 50-600+ m; 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.
Subspecies
pauciflorus
is introduced in Ontario, and probably in all eastern Canada.
Open Interactive Map
Foster, Nicholas
University of Florida Herbarium
sharren f
University of Florida Herbarium
Click to Display
100 Initial Images
- - - - -
View All Images