Silphium integrifolium var. laeve Torr. & A.Gray

Wholeleaf rosinweed (en)

Variety

Angiosperms > Asterales > Asteraceae > Silphium > Silphium integrifolium

Characteristics

Plants 100–150 cm. Leaves: blades glabrous. Phyllaries: abaxial faces glabrous. Ray florets 20–36+. Disc florets 130–225. 2n = 14.
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A herb.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 1.0 - 1.5
Root system -
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 temperate plant.
Light 4-9
Soil humidity 5-7
Soil texture 1-5
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 4-7

Usage

Uses -
Edible roots
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) 84
Germination temperacture (C°) 4
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -29
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Silphium integrifolium var. laeve world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:236452-2
WFO ID wfo-0000063622
COL ID 5RJ2T
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Silphium laeve Silphium speciosum Balsamorhiza silphioides Silphium integrifolium var. laeve