Silphium compositum Michx.

Kidneyleaf rosinweed (en)

Species

Angiosperms > Asterales > Asteraceae > Silphium

Characteristics

Much like no. 8 [Silphium terebinthinaceum Jacq.], but with smaller and often more numerous heads, the disk 0.8–1.5 cm wide, the invol 6–11 mm, the rays 5–10, 1–2 cm; lvs often wider than long, variously merely toothed to deeply pinnatifid or palmatifid and again lobed or cleft; 2n=14. Dry, often sandy places, esp. in pine woods; Va. to Fla., w. to Tenn. and Ala. June–Sept. (S. lapsuum; S. orae; S. reniforme; S. venosum)
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.55 - 0.8
Mature height (meter) 2.0 - 2.25
Root system rhizome
Rooting depth (meter) 3.0
Root diameter (meter) 0.4
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 4-9
Soil humidity 5-7
Soil texture 1-5
Soil acidity 4-8
Soil nutriment -
Hardiness (USDA) 4-8

Usage

Uses medicinal
Edible flowers stems
Therapeutic use Gynecological Aid (unspecified), Stimulant (unspecified), Alterative (unspecified), Asthma (unspecified), Bactericide (unspecified), Catarrh (unspecified), Cough (unspecified), Expectorant (unspecified), Fever (unspecified), Spasm (unspecified), Tonic (unspecified), Diuretic (unspecified), Emetic (unspecified), Masticatory (unspecified), Lung (unspecified), Sudorific (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions or seedlings.
Mode divisions seedlings
Germination duration (days) 84
Germination temperacture (C°) 4
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Silphium compositum world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:249122-1
WFO ID wfo-0000066443
COL ID 6YQMX
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Silphium sinuatum Silphium elatum Silphium compositum Silphium nudicaule Silphium venosum Silphium laciniatum Silphium ovatifolium Silphium lapsuum Silphium pseudolaciniatum Silphium orae Silphium reniforme Silphium compositum f. compositum Silphium compositum subsp. reniforme Silphium compositum var. reniforme Silphium compositum subsp. compositum Silphium compositum var. compositum Silphium compositum subsp. ovatifolium Silphium compositum var. venosum Silphium compositum subsp. venosum