Silphium mohrii
Bull. Torrey Bot. Club 24: 493, plate 315. 1897.
Common names: Shaggy rosinweed
Endemic
Plants caulescent, 40–160 cm; fibrous-rooted. Stems terete, shaggy-hispid. Leaves: basal persistent, petiolate; cauline usually alternate, sometimes opposite, petiolate or sessile; blades lanceolate to narrowly ovate, 1.5–26 × 0.5–14 cm, bases attenuate to acute, margins coarsely toothed or entire, apices acuminate, faces shaggy-hispid. Phyllaries 14–19 in 2–3 series, outer appressed, apices acuminate to acute, abaxial faces shaggy-hispid. Ray-florets 10–20; corollas pale-yellow. Disc-florets 40–85; corollas pale-yellow. Cypselae 6–10 × 4–7 mm; pappi 1–2 mm.
Phenology: Flowering late summer–early fall.
Habitat: Prairies, clearings, fence rows, sandy soils
Elevation: 100–400 m
Distribution
Ala., Ga., Tenn.
Discussion
Selected References
None.
Lower Taxa
None.
"broader" is not a number.
... more about "Silphium mohrii"
shaggy-hispid +
introrse +
connate +
herbaceous +
acuminate;acute +
scarious +
absent +
hirsute +
papillate +
bristlelike +
continuous +
petiolate +
persistent +
elliptic +
lanceolate;narrowly ovate +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
absent +
Shaggy rosinweed +
zygomorphic +
pale-yellow +
winged +
dimorphic +
staminate +
staminate +
straight +
shaggy-hispid +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
discoid +
indeterminate +
surrounding +
campanulate;hemispheric +
deltate +
appressed +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
fragile +
falling +
absent +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
Bull. Torrey Bot. Club +
1897 +
pistillate +
absent +
fertile +
paleate +
flat;slightly convex +
fibrous +
exalbuminous +
modifed +
2;3 +
Endemic +
alternate +
branched +
erect +
shaggy-hispid +
terete +
continuous +
2-branched +
papillate +
Silphium mohrii +
Silphium +
species +
cylindric +
narrow +
much shorter +
cylindric +
shorter to longer than campanulate +
perennial +