Baccharis halimifolia L.

Eastern baccharis (en), Baccharis à feuilles d'Halimione (fr), Baccharis à feuilles d'Halimium (fr), Baccharide à feuilles d'Halimium (fr), Séneçon en arbre (fr)

Species

Angiosperms > Asterales > Asteraceae > Baccharis

Characteristics

Freely branched shrubs 1–3(–4) m, glabrous and somewhat glutinous, the branches and invols sometimes minutely scurfy; lvs short-petiolate, the blade thick and firm, puncticulate, elliptic to broadly obovate, coarsely few-toothed, especially distally, to ca 6 × 4 cm, those of the infl smaller, narrower, and mostly entire; heads numerous in small, pedunculate clusters, forming terminal, leafy-bracteate infls on the major branches; pistillate invols 4–6.5 mm, the bracts strongly imbricate in several series, the inner ones narrow and ± acute; pappus white, that of the pistillate fls much exceeding the cors and invols in fr, that of the sterile heads shorter than the fls and with the bristles somewhat fringed distally; 2n=18. Marshes and beaches, especially near the seashore; Mass. to Fla., Ark., and Tex.; W.I. Aug.–Nov.
More
Glabrous, much-branched shrub up to c. 4 m tall. Stems ribbed, mealy when young, becoming glabrous. Lvs obovate-oblong to oblong-elliptic, apetiolate and cuneate, obtuse to subacute, coriaceous, remotely serrate or crenate, mealy when young, becoming glabrous, puncticulate, (10)-15-30-(40) × (5)-7-10-(15) mm; lvs subtending glomerules smaller, often elliptic and entire. Capitula 3-5 mm diam. at anthesis, ± sessile in axillary and terminal glomerules of 2-20, fewer and sometimes solitary in ♀ plants. Inner involucral bracts elliptic-oblong, glabrous, green with pale membranous margin, glabrous, 3-4.5 mm long; outer bracts ± orbicular, mealy, c. 2 mm long. Corolla of ♂ florets cream, of ♀ florets inconspicuous and exceeded by pappus. Achenes obovoid, terete, 10-ribbed, glabrous; pappus minutely denticulate.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality dioecy
Pollination entomogamy
Spread hydrochory
Mature width (meter) 2.25
Mature height (meter) 3.25
Root system -
Rooting depth (meter) 0.5
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Open woods, thickets and borders of marshes near the coast, often in saline soils. Open sandy places, wet fields, marshes, beaches, disturbed sites, roadsides, old fields; at elevations up to 100 metres.
Light 5-7
Soil humidity 4-8
Soil texture 1-5
Soil acidity 3-8
Soil nutriment -
Hardiness (USDA) 5-8

Usage

Uses bee plant environmental use material medicinal poison wood
Edible -
Therapeutic use Respiratory (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) 5
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -18
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Baccharis halimifolia habit picture by Chris Griggs (cc-by-sa)
Baccharis halimifolia habit picture by Bernard Fabier (cc-by-sa)
Baccharis halimifolia habit picture by Jacques André (cc-by-sa)

Leaf

Baccharis halimifolia leaf picture by Guillaume SILANDE (cc-by-sa)
Baccharis halimifolia leaf picture by Michelle Goudail (cc-by-sa)
Baccharis halimifolia leaf picture by Michelle Goudail (cc-by-sa)

Flower

Baccharis halimifolia flower picture by Martine CANON (cc-by-sa)
Baccharis halimifolia flower picture by lori law (cc-by-sa)
Baccharis halimifolia flower picture by Alain Bureau (cc-by-sa)

Fruit

Baccharis halimifolia fruit picture by Garde Lourdes (cc-by-sa)
Baccharis halimifolia fruit picture by Christophe Gautreau (cc-by-sa)
Baccharis halimifolia fruit picture by Alfredo (cc-by-sa)

Distribution

Baccharis halimifolia world distribution map, present in Australia, Bahamas, Canada, Cuba, Spain, France, United Kingdom of Great Britain and Northern Ireland, Georgia, Mexico, Netherlands, New Zealand, and United States of America

Conservation status

Baccharis halimifolia threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:319078-2
WFO ID wfo-0000038084
COL ID K79D
BDTFX ID 9062
INPN ID 85474
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Baccharis halimifolia Conyza halimifolia Baccharis cuneifolia Baccharis halimifolia var. halimifolia Baccharis halimifolia var. angustior