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Baccharis pilularis . Dc
COYOTEBRUSH
Life   Plantae   Dicotyledoneae   Asteraceae   Baccharis

Baccharis pilularis
© Copyright New York Botanical Garden, 2013 · -9
Baccharis pilularis

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Associates · map
FamilyScientific name @ source (records)
Andrenidae  Andrena grindeliae @ UCRC_ENT (1)
Aphididae  Anoecia corni @ CSCA_TCN (1)

Aphis ( @ AMNH_PBI (3); CSCA_TCN (2)

Brachycaudus ( @ NCSU_ENT (2); CSCA_TCN (5)

Myzus ( @ AMNH_PBI (1)
Apidae  Apis mellifera @ BBSL (1)

Bombus caliginosus @ BBSL__JPS (11)

Bombus vosnesenskii @ BBSL__JPS (1)
Arthopyreniaceae  Naetrocymbe scoriadea @ 699298B (1); 699298A (1)
Braconidae  Aphidius ( @ AMNH_PBI (2)

Lysiphlebus ( @ AMNH_PBI (162)
Buprestidae  Chrysobothris beyeri @ UCRC_ENT (1)
Capnodiaceae  Capnodium elongatum @ BPI (5)

Capnodium salicinum @ BPI (5)
Chaetothyriaceae  Phaeosaccardinula dematia @ BPI (1)
Chrysididae  Chrysis @ UCRC_ENT (1)
Cicadellidae  Stragania @ AMNH_PBI (7)
Coccidae  Saissetia oleae @ CSCA_TCN (2)
Coleosporiaceae  Coleosporium baccharidis @ BPI (3)
Colletidae  Hylaeus calvus @ AMNH_BEE (2)

Hylaeus mesillae @ AMNH_BEE (1); UCRC_ENT (1)
Diaporthaceae  Diaporthe sarothamni @ 617047B (1); 617047A (1)
Diatrypaceae  Diatrype ceanothi @ BPI (1)

Eutypa heteracantha @ BPI (1)

Eutypella ceanothi @ BPI (3)
Dictyopharidae  Orgerius bilobatus @ UCR_ENT (1)
Hyaloscyphaceae  Lachnum corticale @ BPI (2)
Hypocreaceae  Hypocrea patella @ BPI (2)
Marasmiaceae  Lachnella corticalis @ BPI (1)
Melanommataceae  Melanomma seminis @ BPI (2)
Membracidae  Philya californensis @ UDCC_TCN (2)
Meruliaceae  Merulius confluens @ BPI (1)
Miridae  Deraeocoris @ AMNH_PBI (6)

Irbisia californica @ AMNH_ENT (1)

Irbisia silvosa @ AMNH_IZC (1)

Irbisia solani @ AMNH_IZC (12)

Lygus hesperus @ AMNH_PBI (5)

Parthenicus brunneus @ AMNH_PBI (1)

Pilophorus tomentosus @ AMNH_PBI (17)

Proba californica @ AMNH_PBI (24); UCR_ENT (22); AMNH_ENT (29)
Mymaridae  Alaptus @ UCRC_ENT (2)

Anagrus @ UCRC_ENT (39)

Anagrus atomus @ UCRC_ENT (3)

Anagrus erythroneurae @ UCRC_ENT (220)
Peniophoraceae  Peniophora albobadia @ BPI (1)
Pseudococcidae  Phenacoccus madeirensis @ CSCA_TCN (1)

Phenacoccus solenopsis @ CSCA_TCN (1)

Pseudococcus viburni @ CSCA_TCN (2)
Psyllidae  Trioza collaris @ CSCA_TCN (2)
Pucciniaceae  Puccinia baccharidis @ BPI (3)

Puccinia evadens @ 065550A (1); 065550B (1); BPI (35)
Reduviidae  Phymata pacifica @ UCR_ENT (1)
Stereaceae  Stereum gausapatum @ BPI (1)

Stereum heterosporum @ BPI (1)
Trichogrammatidae  Ufens @ UCRC_ENTA (1)
Tricholomataceae  Helotium citrinum @ BPI (1)
Valsaceae  Diaporthopsis sclerophila @ BPI (3)
Xylariaceae  Sphaeria seminis @ BPI (2)
_  Calinda collaris @ CSCA_TCN (1)

Eriosporangium evadens @ BPI (9)

Leptocapnodium krameri @ 698839D (1); 698839B (1); 698839A (1); 698839C (1)

Pleosphaeria salicina @ BPI (1)

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Following modified from Flora of North America
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FNA Vol. 20 Page 24, 25, 29 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 20 | Asteraceae | Baccharis

11. Baccharis pilularis de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 407. 1836.

Chaparral broom, coyote brush, dwarf chaparral false willow

Shrubs, 15—450 cm (prostrate and mat-forming to erect and rounded, much branched). Stems spreading to ascending, dark brown, shiny, striate-angular, glabrous, often ± scurfy, usually resinous and sticky. Leaves present at flowering; sessile or short-petiolate; blades (1- or 3-nerved) oblanceolate to obovate, the smaller 5—40 × 2—15 mm (thick), bases cuneate, margins entire or coarsely dentate (teeth 3—9 distal to middles), faces glabrous, gland-dotted, resinous. Heads (100—200+) in (leafy) paniculiform arrays. Involucres hemispheric to campanulate; staminate 3.2—5 mm, pistillate 3—6 mm. Phyllaries ovate to lanceolate, 1—3 mm, margins yellowish, scarious, medians yellow proximally, green distally, apices obtuse to acute or acuminate (erose, abaxial faces papillose-scurfy). Staminate florets 20—34, 3—4 mm. Pistillate florets 19—43; corollas 2.5—3.5 mm. Cypselae 1—2 mm, 8—10-nerved, glabrous; pappi 6—9 mm.

Subspecies 2 (2 in the flora): w United States, nw Mexico.

Baccharis pilularis can be distinguished by its dark brown stems, and serrate, obovate to oblanceolate leaves. In addition, plants from some dunes of the California coast are prostrate, a growth form unique to this genus in our region.

The common, weedy, widespread form is subsp. consanguinea , which is typically erect, with its larger leaves 15—40 mm. Subspecies pilularis is known only from exposed sandy dunes and bluffs along the central coast of California. Its growth habit is matlike, and its larger leaves are 5—15 mm. The prostrate habit of subsp. pilularis is strikingly different from the upright habit of subsp. consanguinea .

SELECTED REFERENCE

Wolf, C. B. 1935. Observations on Baccharis pilularis DC. Occas. Pap. Rancho Santa Ana Bot. Gard. 1: 17—29.

Updated: 2024-05-28 03:43:32 gmt
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