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Baccharis halimifolia L.
TREE GROUNDSEL
Eastern Baccharis; Groundseltree; Silverling; Groundsel-bush

Life   Plantae   Dicotyledoneae   Asteraceae   Baccharis

Baccharis halimifolia, Groundsel Tree
© Copyright Sheryl Pollock 2011 · 8
Baccharis halimifolia, Groundsel Tree

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Baccharis halimifolia
© Copyright Matthew Ericson 2012 · 5
Baccharis halimifolia
Baccharis halimifolia
© Copyright Matthew Ericson 2012 · 5
Baccharis halimifolia

Baccharis halimifolia
© Copyright Matthew Ericson 2012 · 5
Baccharis halimifolia
Baccharis halimifolia
© Copyright Matthew Ericson 2012 · 5
Baccharis halimifolia

Baccharis halimifolia
© Copyright Matthew Ericson 2012 · 5
Baccharis halimifolia
Baccharis halimifolia
© Copyright Matthew Ericson 2012 · 5
Baccharis halimifolia

Baccharis halimifolia
© Copyright Matthew Ericson 2012 · 5
Baccharis halimifolia
Baccharis halimifolia
© Copyright Matthew Ericson 2012 · 5
Baccharis halimifolia

Baccharis halimifolia
© Copyright Bobby Hattaway 2011 · 5
Baccharis halimifolia
Baccharis halimifolia
© Copyright Bobby Hattaway 2011 · 5
Baccharis halimifolia

Baccharis halimifolia
© Copyright Bobby Hattaway 2011 · 5
Baccharis halimifolia
Baccharis halimifolia
© Copyright Bobby Hattaway 2011 · 5
Baccharis halimifolia

Baccharis halimifolia
© Copyright Bobby Hattaway 2011 · 5
Baccharis halimifolia
Baccharis halimifolia
© Copyright Bobby Hattaway 2011 · 5
Baccharis halimifolia
Names
Scientific source:

Supported by

Associates · map
FamilyScientific name @ source (records)
Acanaloniidae  Acanalonia conica @ UDCC_NRI (2)

Acanalonia servillei @ UDCC_NRI (18)
Andrenidae  Andrena hirticincta @ UCMS_ENT (3)

Perdita octomaculata @ BBSL (1)
Aphididae  Aphis ( @ NCSU_ENT (13)

Macrosiphum ( @ NCSU (3)
Apidae  Apis mellifera @ UCMS_ENT (3)

Bombus impatiens @ UCMS_ENT (2)
Capnodiaceae  Capnodium @ 698936B (1); 698936C (1); BPI (1); 698936A (1)
Colletidae  Colletes simulans @ BBSL (2)

Colletes thysanellae @ BBSL (1)
Delphacidae  Stobaera pallida @ UDCC_TCN (8); NCSU (2); UDCC_NRI (12)
Diaporthaceae  Diaporthe baccharidis @ BPI (1)
Diaspididae  Aonidomytilus solidaginis @ AMNH_PBI (1)
Diatrypaceae  Diatrype baccharidis @ BPI (1)

Eutypa heteracantha @ BPI (1)
Dothideaceae  Dothidea baccharidis @ BPI (5)

Dothidea collecta @ BPI (7)

Dothidea puccinioides @ BPI (1)

Dothidea tetraspora @ BPI (1)

Systremma baccharidis @ BPI (4)
Flatidae  Ormenoides venusta @ UDCC_NRI (7)
Hypocreaceae  Hypocrea lenta @ BPI (1)
Membracidae  Micrutalis calva @ NCSU (2)
Miridae  Deraeocoris nebulosus @ MEMU_ENT (1)

Gn_orthotylinigp12 sp_003 @ AMNH_PBI (1)

Gn_orthotylinigp26 sp_001 @ AMNH_PBI (1)

Gn_orthotylinigp29 sp_001 @ AMNH_PBI (1)

Gn_orthotylinigp34 sp_001 @ AMNH_PBI (1)

Gn_orthotylinigp34 sp_002 @ AMNH_PBI (1)

Gn_orthotylinigp4 sp_035 @ AMNH_PBI (1)

Gn_orthotylinigp6 sp_001 @ AMNH_PBI (3)

Lygus lineolaris @ MEMU_ENT (3)

Microtechnites inesalti @ AMNH_PBI (1)

Myrtlemiris russulatus @ AMNH_PBI (2)

Orthotylus sp_ms_drepanomorphus @ AMNH_PBI (2)

Orthotylus sp_ms_notodytikos @ AMNH_PBI (1)

Slaterocoris pallipes @ AMNH_PBI (89)

Taylorilygus apicalis @ MEMU_ENT (3)
Mycosphaerellaceae  Cercospora @ 432240A (1); 432240C (1); 432240B (1)
Piesmatidae  Mcateella elongata @ AMNH_PBI (1)
Polyporaceae  Polyporus hirsutus @ BPI (2)

Polyporus tulipiferus @ BPI (1)

Polyporus versicolor @ BPI (1)
Polystomellaceae  Dothidella tinctoria @ BPI (2)
Pseudoperisporiaceae  Lasiostemma melioloides @ BPI (11)
Pucciniaceae  Puccinia evadens @ BPI (7)
Schizophyllaceae  Schizophyllum commune @ BPI (3)
Stereaceae  Stereum sanguinolentum @ BPI (4)
Stictidaceae  Stictis radiata @ BPI (1)
Tropiduchidae  Pelitropis rotulata @ UDCC_NRI (1)
Xylariaceae  Creosphaeria sassafras @ BPI (1)
_  Carldrakeaninae nov @ AMNH_PBI (1)

Morfea helianthemi @ BPI (1)

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FNA | Family List | FNA Vol. 20 | Asteraceae | Baccharis

7. Baccharis halimifolia Linnaeus, Sp. Pl. 2: 860. 1753.

Sea-myrtle, consumption-weed, eastern baccharis

Baccharis halimifolia var. angustior de Candolle

Shrubs or trees , 100—300(—600) cm (freely branched). Stems erect to ascending, slender, striate-angled, glabrous or minutely scurfy, sometimes resinous. Leaves present at flowering; short-petiolate or sessile; blades elliptic to broadly obovate or rhombic, main cauline rhombic, 30—50(—80) × 10—40(—60) mm (thick and firm), bases cuneate, margins entire proximally, usually coarsely serrate distal to middles (teeth 1—3 pairs), faces glabrous, gland-dotted, resinous (distal reduced, entire). Heads 3—4 in loose pedunculate clusters in (terminal, leafy-bracted) broad paniculiform arrays. Involucres campanulate; staminate 3—5 mm, pistillate 3—5 mm. Phyllaries ovate to lanceolate, 1—4 mm, margins scarious, medians green, apices obtuse to acute. Staminate florets 25—30; corollas 3—4 mm. Pistillate florets 20—30; corollas 2.5—3.5 mm. Cypselae 1—1.8 mm, 8—10-nerved, glabrous; pappi 8—12 mm. 2 n = 18.

Flowering Aug—Nov. Open sandy places, wet fields, marshes, beaches, disturbed sites, roadsides, old fields; 0—100 m; N.S.; Ala., Ark., Conn., Del., Fla., Ga., La., Md., Mass., Miss., N.J., N.Y., Okla., Pa., R.I., S.C., Tex., Va.; Mexico (Nuevo León, San Luis Potosí, Tamaulipas, Veracruz); West Indies; introduced in Europe (France), Australia.

Native to the Atlantic and Gulf Coastal Plain, Baccharis halimifolia is recognized by its broad, distinctly rhombic, coarsely serrate basal leaves, pyramidal, leafy arrays, and cypselae with large fluffy pappi. The plants are often to 600 cm; the basal leaves might be missed by collectors. Forms with relatively narrow leaves are especially common in Arkansas, Louisiana, and east Texas. These may be the result of hybridization and introgression with B. neglecta , in areas where they are known to hybridize (D. J. Zanowiak 1991), or with B. angustifolia . Hybrids between B. halimifolia and B. angustifolia are known from Florida as well. Baccharis halimifolia has been introduced to Australia and France. In Australia it infests large areas along the coast of southern Queensland and New South Wales. Its success as an invasive weed is attributed to production of a large number of seeds that are widely dispersed by the wind, shade tolerant germination and seedlings, tolerance to wet soils and salinity, and ability to resprout after a fire (W. E. Westman et al. 1975). The leaves of B. halimifolia contain a cardiotoxic glycoside known to cause the death of sheep if they eat about one percent of their body weight in leaves.

Updated: 2024-05-28 03:18:52 gmt
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