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Berteroa incana (L. ) Dc.
HOARY ALISON
Alyssum incanum L; Hoary alyssum

Life   Plantae   Dicotyledoneae   Brassicaceae   Berteroa

Berteroa incana
© Les Mehrhoff, 2008-2010 · 2
Berteroa incana

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Berteroa incana, leaf and flower and fruit
© Kay Yatskievych, 2003 · 1
Berteroa incana, leaf and flower and fruit
Berteroa incana, seed
© Copyright Seeds USID 2015 · 1
Berteroa incana, seed

Berteroa incana, seed
© Copyright Seeds USID 2015 · 1
Berteroa incana, seed

Associates · map
FamilyScientific name @ source (records)
Halictidae  Halictus confusus @ CUIC_ENT (1)
Miridae  Orthotylus coagulatus @ AMNH_PBI (2)

Orthotylus flavosparsus @ AMNH_PBI (2)

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ERROR -- Need to remove recursive link: http://pick18.pick.uga.edu/mp/20p%3Fsee%3DI_USID83%26res%3D320 USID_Seeds

Following modified from MissouriPlants.com
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Berteroa incana  (L.) DC.

Berteroa incana plant

Family - Brassicaceae

Stems - Multiple from the base, erect to ascending, herbaceous, mostly unbranched (except at apex), to 1m tall, scabrous from dense forked and stellate pubescence.

Berteroa incana stem Stem.

Leaves - Alternate, sessile. Blades linear-elliptic, entire, 5-8cm long, +/-1cm broad, rounded to subacute at apex, stellate pubescent above and below, reduced upward on stem.

Inflorescence - Terminal and lateral racemes to +/-25cm long. Racemes dense in flower, quickly elongating in fruit. Pedicels ascending, to 7-8mm long, stellate and forked pubescent.

Berteroa incana inflorescence Inflorescence.

Flowers - Petals 4, 5-7mm long, deeply notched at apex, tapering at base, glabrous. Lobes rounded to acute at apex. Stamens 6, erect, glabrous, white, 3-4mm long. Anthers yellow, to 1mm long. Ovary superior, green, densely stellate pubescent, 1mm long in flower. Style green, to 2mm long, sparse stellate pubescent, persistent in fruit. Sepals 4, erect, densely stellate pubescent externally, glabrous internally, 3-4mm long, to 1mm broad, with scarious margins, elliptic, acute. Silicle 6-7mm long, elliptic-ovate to orbicular, stellate pubescent, beaked, with 6-10 seeds. Beak to 2mm long.

Berteroa incana flowers

Berteroa incana fruit Fruit.

Flowering - May - September.

Habitat - Roadsides, railroads, waste ground.

Origin - Native to Europe.

Other info. - This striking species is rare in Missouri but is becoming more common. The plant is very common in more northern states and is spreading throughout much of eastern North America. The plant is easy to ID in the field because of its deeply divided white petals and gray stellate pubescence.

Photographs taken in Marquette, MI., 7-25-02.



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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Link to Flora of North America home
 
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FNA Vol. 7 Page 249 , 252, 253 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Brassicaceae | Berteroa

1. Berteroa incana (Linnaeus) de Candolle, Syst. Nat. 2: 291. 1821.

Alyssum incanum Linnaeus, Sp. Pl. 2: 650. 1753

Plants densely pubescent, trichomes appressed, stellate mixed with simple ones. Stems simple or few from base, (2-)3-8(-11) dm. Basal leaves (withered by flowering) : blade oblanceolate, (2.5-)3.5-8(-10) cm, base cuneate or attenuate, apex obtuse. Cauline leaves: blade apex acute or obtuse. Fruiting pedicels appressed to rachis, (4-)5-9(-12) mm. Flowers: sepals 2-2.5 mm; petals narrowly obcordate, (4-)5-6.5(-8) mm (lobes oblong, (1-)1.5-3 × 0.5-1.5 mm); filaments white, median pair 2-3.3 mm, lateral pair 0.3-1 mm; anthers 0.5-1 mm. Fruits (4-)5-8.5(-10) × (2-)2.5-4 mm; valves obtuse at both ends, trichomes sometimes with unequal rays; style 1-4 mm, sparsely pubescent basally. Seeds slightly flattened, narrowly margined, 1-2.3 mm diam. 2 n = 16.

Flowering May-Sep. Flood plains, meadows, waste places, railroad embankments, woodlands, grasslands, roadsides, fields, stream banks, pastures, hillsides, forest floor; 0-2800 m; introduced; B.C., Man., N.B., Ont., Que., Sask.; Ariz., Calif., Colo., Conn., D.C., Idaho, Ill., Ind., Iowa, Kans., Maine, Mass., Mich., Minn., Mo., Mont., Nebr., Nev., N.H., N.J., N.Y., N.Dak., Ohio, Oreg., Pa., R.I., S.Dak., Utah, Vt., Va., Wash., W.Va., Wis., Wyo.; Europe; Asia.

Following modified from CalPhotos
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CalPhotos     Photo Database

 

Number of matches : 21
Query: SELECT * FROM img WHERE ready=1 and taxon like "Berteroa incana%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Berteroa incana
Berteroa incana
ID: 0000 0000 0408 1277 [detail]
© 2008 Louis-M. Landry

Berteroa incana
Berteroa incana
ID: 0000 0000 0408 1278 [detail]
© 2008 Louis-M. Landry

Berteroa incana
Berteroa incana
ID: 0000 0000 0408 1279 [detail]
© 2008 Louis-M. Landry

Berteroa incana
Berteroa incana
ID: 0000 0000 0408 1280 [detail]
© 2008 Louis-M. Landry

Berteroa incana
Berteroa incana
ID: 0000 0000 0408 1281 [detail]
© 2008 Louis-M. Landry

Berteroa incana
Berteroa incana
Hoary Alyssum
ID: 0000 0000 1008 0553 [detail]
© 2008 Zoya Akulova

Berteroa incana
Berteroa incana
Hoary Alyssum
ID: 0000 0000 1008 0554 [detail]
© 2008 Zoya Akulova

Berteroa incana
Berteroa incana
Hoary Alysum
ID: 0000 0000 0114 2322 [detail]
© 2014 John Doyen

Berteroa incana
Berteroa incana
Hoary Alysum
ID: 0000 0000 0114 2324 [detail]
© 2014 John Doyen

Berteroa incana
Berteroa incana
Hoary Alysum
ID: 0000 0000 0114 2326 [detail]
© 2014 John Doyen

Berteroa incana
Berteroa incana
Hoary Alysum
ID: 0000 0000 0114 2333 [detail]
© 2014 John Doyen

Berteroa incana
Berteroa incana
Hoary Alyssum
ID: 0000 0000 1015 2355 [detail]
© 2015 Barry Breckling

Berteroa incana
Berteroa incana
Hoary Alyssum
ID: 0000 0000 1015 2356 [detail]
© 2015 Barry Breckling

Berteroa incana
Berteroa incana
Hoary-alyssum
ID: 0000 1111 1234 2702 [detail]
© 2016 Keir Morse

Berteroa incana
Berteroa incana
Hoary-alyssum
ID: 0000 1111 1234 2703 [detail]
© 2016 Keir Morse

Berteroa incana
Berteroa incana
Hoary-alyssum
ID: 0000 1111 1234 2704 [detail]
© 2016 Keir Morse

Berteroa incana
Berteroa incana
Hoary-alyssum
ID: 0000 1111 1234 2705 [detail]
© 2016 Keir Morse

Berteroa incana
Berteroa incana
Hoary-alyssum
ID: 0000 1111 1234 2706 [detail]
© 2016 Keir Morse

Berteroa incana
Berteroa incana
Hoary-alyssum
ID: 0000 1111 1234 2707 [detail]
© 2016 Keir Morse

Berteroa incana
Berteroa incana
Hoary-alyssum
ID: 0000 1111 1234 2708 [detail]
© 2016 Keir Morse

Berteroa incana
Berteroa incana
Hoary-alyssum
ID: 0000 1111 1234 2709 [detail]
© 2016 Keir Morse

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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