Iva frutescens L.

Jesuit's bark (en)

Species

Angiosperms > Asterales > Asteraceae > Iva

Characteristics

Perennial, somewhat fleshy shrub or coarse herb 0.5–3.5 m, puberulent or strigose at least above; lvs generally all opposite except the reduced upper ones, the main ones 4–10 cm, evidently short-petiolate; invol 2–4 mm, of 4–5(6) equal bracts; pistillate fls 4–5(6), with tubular cor 1 mm tending to persist on the copiously resin-dotted achene; 2n=34. Marshes and other moist places along the seashore; N.S. and Mass. to Fla. and Tex. Our plants are mostly var. oraria (Bartlett) Fernald & Griscom, with lvs less than 4 times as long as wide, to 10 × 4 cm, and with 8–17 teeth to a side. In Va. this passes into the more southern var. frutescens, with smaller, narrower lvs (4–7× 0.7–1.5 cm, 4–8 times as long as wide) with to ca 8 teeth to a side (or subentire).
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 2.7
Root system -
Rooting depth (meter) 0.4
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-8
Soil humidity 8-9
Soil texture -
Soil acidity 3-4
Soil nutriment -
Hardiness (USDA) 4-9

Usage

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

Cultivation

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

Images

Leaf

Iva frutescens leaf picture by casey manera (cc-by-sa)
Iva frutescens leaf picture by Feya Sterling (cc-by-sa)
Iva frutescens leaf picture by Kendra RaiderNature (cc-by-sa)

Distribution

Iva frutescens world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:329302-2
WFO ID wfo-0000044620
COL ID 3QF3K
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Iva frutescens var. frutescens Iva frutescens

Lower taxons

Iva frutescens subsp. oraria Iva frutescens subsp. frutescens