Silphium asteriscus var. trifoliatum (L.) Clevinger

Variety

Angiosperms > Asterales > Asteraceae > Silphium > Silphium asteriscus

Characteristics

Plants 75–140 cm. Leaves: basal persistent; cauline mostly whorled (in 3s); faces glabrous or sparsely hairy. Paleae puberulent. Ray florets 11–16. Disc florets 35–90. 2n = 14.
More
A herb.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.75 - 1.4
Root system fibrous-root rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a cool temperate plant. It suits hardiness zone 4.
Light 4-9
Soil humidity 3-7
Soil texture 2-5
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-7

Usage

Uses ornamental wood
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -29
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Silphium asteriscus var. trifoliatum world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:60436442-2
WFO ID wfo-0000102325
COL ID 5RJ2K
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Silphium atropurpureum Silphium ternifolium Silphium ternatum Silphium trifoliatum f. trifoliatum Silphium atropurpureum f. atropurpureum Silphium laevigatum Silphium asteriscus var. trifoliatum Silphium trifoliatum