Log In
New Account
Sitemap
Home
Fauna Database
Search Collections
Map Search
Image Search
Browse Images
Inventories
Sky Island Provinces
MABA Inventory Sites
Interactive Tools
Dynamic Checklist
Dynamic Key
Silphium radula
Nutt.
(redirected from:
Silphium dentatum var. gatesii
(C.Mohr) H.E.Ahles)
Family:
Asteraceae
Rough-Stem Rosinweed,
more...
roughstem rosinweed
[
Silphium asperrimum
Hook.,
more
Silphium dentatum var. gatesii
(C.Mohr) H.E.Ahles,
Silphium gatesii
Mohr.
]
FNA
Resources
Jennifer A. Clevinger in Flora of North America (vol. 21)
Plants
caulescent, 30-250 cm; fibrous rooted.
Stems
terete, scabrous, hispid, or hirsute.
Leaves:
basal persistent or caducous, petiolate; cauline alternate or opposite, petiolate or sessile; blades lanceolate to ovate, 2-22 × 0.5-8 cm, bases attenuate to round, margins coarsely dentate or entire, apices acuminate to acute, faces scabrous, hispid, or hirsute.
Phyllaries
18-37 in 2-4 series, outer appressed or reflexed, apices acute, abaxial faces scabrous.
Ray florets
12-30+; corollas yellow.
Disc florets
100-175; corollas yellow.
Cypselae
10-17 × 7-15 mm;
pappi
2-5 mm.
Open Interactive Map
Tiana (brit) Rehman
University of Florida Herbarium
Sue Frary
Click to Display
100 Initial Images
- - - - -
View All Images