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Baccharis salicina Torr. & A. Gray
WILLOW BACCHARIS
Life   Plantae   Dicotyledoneae   Asteraceae   Baccharis

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

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FamilyScientific name @ source (records)
Apidae  Exomalopsis mellipes @ AMNH_BEE (26)

Melissodes tepaneca @ AMNH_BEE (2)
Delphacidae  Pissonotus @ UCR_ENT (1)
Halictidae  Agapostemon texanus @ AMNH_BEE (1)

Augochlora aurifera @ AMNH_BEE (1)

Augochlorella bracteata @ AMNH_BEE (2)

Dieunomia nevadensis @ AMNH_BEE (1)

Halictus ligatus @ AMNH_BEE (2)

Lasioglossum connexum @ AMNH_BEE (1)
Largidae  Largus cinctus @ UCR_ENT (3)
Membracidae  Spissistilus festinus @ UCR_ENT (1)
Miridae  Parthenicus baccharidis @ AMNH_PBI (3)
Nabidae  Nabis americoferus @ UCR_ENT (1)

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Following modified from Plants Database, United States Department of Agriculture
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Following modified from Flora of North America
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FNA | Family List | FNA Vol. 20 | Asteraceae | Baccharis

15. Baccharis salicina Torrey & A. Gray, Fl. N. Amer. 2: 258. 1842.

Willow-baccharis, Great Plains false willow

Baccharis salicifolia Nuttall, Trans. Amer. Philos. Soc., n. s. 7: 337. 1840, not (Ruiz & Pavón) Persoon 1807; B. emoryi A. Gray

Shrubs, 100—300 cm (much branched). Stems ascending, striate-angled, glabrous, smooth or minutely roughened, resinous. Leaves present at flowering (numerous and well developed); short-petiolate; blades (at least broader distinctly 3-nerved) oblong to oblanceolate, 25—70 × 5—10(—20) mm, bases tapering attenuate, margins usually serrate distally (teeth 1—3, coarse irregular, ca. 5 mm apart), sometimes entire, apices acute or obtuse, faces finely gland-dotted. Heads (100—200+, short-pedunculate or sessile) in (large, crowded, leafy) paniculiform arrays. Involucres narrowly obconic to campanulate; staminate 4—7 mm, pistillate 5—9 mm. Phyllaries lanceolate , 2—6 mm, margins scarious, medians green or reddish, apices greenish or purplish, often erose-ciliate, faces glabrous, gland-dotted, resinous . Staminate florets 20—25; corollas 3—5 mm. Pistillate florets 25—30; corollas 3—4 mm. Cypselae 1.2—2 mm, irregularly 8—10-nerved, glabrous; pappi 8—12 mm (elongating in fruit).

Flowering May—Nov. Stream banks, alkaline meadows, roadsides; 300—1600 m; Ariz., Calif., Colo., Kans., Nev., N.Mex., Okla., Tex., Utah; Mexico (Baja California, Chihuahua, Coahuila, Durango, Sonora).

Baccharis salicina is recognized by its narrow, gland-dotted leaves with 1—3 irregular teeth on the distal half, heads in loose leafy arrays, campanulate involucres, and cypselae with 8—10 ribs.

The recognition of Baccharis emoryi as a separate species in other floras has been based on its wider, glabrous, eglandular leaves, more cylindric pistillate involucres, and dense whitish pappi. It was said to occur both west of the Rocky Mountains and in western Texas. In our study, expressions of the characters used to distinguish B. emoryi from other species were found to be inconsistent and inadequate to warrant recognition as a distinct species. There appears to be a complex of up to four species— emoryi, salicina, neglecta and angustifolia —that intergrade from west to east. Characteristics progress from broader leaves and larger heads ( emoryi form of salicina ) to narrow leaves with small heads ( neglecta, angustifolia ). The delimitation of taxa within this complex merits further investigation.

Following modified from CalPhotos
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CalPhotos     Photo Database

 

Number of matches : 5
Query: SELECT * FROM img WHERE ready=1 and taxon like "Baccharis salicina%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Baccharis salicina
Baccharis salicina
ID: 0000 0000 0809 0284 [detail]
© 2009 Robert Steers

Baccharis salicina
Baccharis salicina
Water Willow
ID: 0000 0000 0713 0810 [detail]
© 2013 Jean Pawek

Baccharis salicina
Baccharis salicina
Water Willow
ID: 0000 0000 0713 0811 [detail]
© 2013 Jean Pawek

Baccharis salicina
Baccharis salicina
Water Willow
ID: 0000 0000 0713 0812 [detail]
© 2013 Jean Pawek

Baccharis salicina
Baccharis salicina
Willow-baccharis
ID: 0000 0000 1115 3176 [detail]
© 2015 Richard Spellenberg

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


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