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Erysimum asperum (Nutt. ) Dc.
WESTERN WALLFLOWER
Life   Plantae   Dicotyledoneae   Brassicaceae   Erysimum


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FamilyScientific name @ source (records)
Andrenidae  Andrena cressonii @ AMNH_BEE (1)

Andrena miranda @ AMNH_BEE (1)
Apidae  Nomada articulata @ AMNH_BEE (1)
Colletidae  Colletes phaceliae @ AMNH_BEE (1)
Halictidae  Agapostemon virescens @ AMNH_BEE (1)

Lasioglossum perpunctatum @ AMNH_BEE (1)

Lasioglossum succinipenne @ AMNH_BEE (6)
Megachilidae  Coelioxys rufitarsis @ AMNH_BEE (5)

Megachile latimanus @ AMNH_BEE (1)

Megachile texana @ AMNH_BEE (1)

Osmia rawlinsi @ BBSL__BBSLID (1)
Peronosporaceae  Peronospora parasitica @ BPI (1)
Pucciniaceae  Puccinia holboellii @ BPI (1)

Puccinia subnitens @ BPI (3)

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Following modified from Flora of North America
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FNA Vol. 7 Page 532 , 535, 537 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Brassicaceae | Erysimum

3. Erysimum asperum (Nuttall) de Candolle, Syst. Nat. 2: 505. 1821.

Cheiranthus asper Nuttall, Gen. N. Amer. Pl. 2: 69. 1818; Cheirinia aspera (Nuttall) Rydberg; Erysimum asperum var. dolichocarpum O. E. Schulz

Biennials. Trichomes of leaves 2- or 3-rayed. Stems erect, unbranched or branched distally, (0.6-)1.2-6.5(-8) dm. Basal leaves (often withered by fruiting); blade oblanceolate, 2-10 cm × (0.2-)0.5-1.5(-2.4) mm, base attenuate, margins dentate, apex acute. Cauline leaves (distal) sessile; blade margins entire or denticulate. Racemes considerably elongated in fruit. Fruiting pedicels horizontal to divaricate, slender, narrower than fruit, 5-16(-25) mm. Flowers : sepals oblong to linear-oblong, 8-12 mm, lateral pair slightly saccate basally; petals yellow, obovate to suborbicular, 13-22 × 4-9 mm, claw 8-15 mm, apex rounded; median filaments 8-14 mm; anthers linear, 2.5-4 mm. Fruits widely spreading or divaricate, narrowly linear, usually straight, rarely curved upward, not torulose, (3-)5-12(-14) cm × 1.2-2.7 mm, 4-angled, strongly (longitudinally) 4-striped; valves with prominent midvein and replum, densely pubescent outside, trichomes 2-rayed between midvein and replum, glabrous inside; ovules 72-120 per ovary; style cylindrical, slender, 1-4 mm, sparsely pubescent; stigma slightly 2-lobed, lobes as long as wide. Seeds ovoid, (1-)1.3-2.3 × 0.7-1.2 mm; usually not winged, rarely winged distally. 2 n = 36.

Flowering Apr-Jun(-Aug). Prairies, sand dunes, roadsides, bluffs, sandhills along stream banks, knolls, open plains; 200-2000 m; Alta., Man., Sask.; Ark., Colo., Ill., Kans., Minn., Mont., Nebr., N.Mex., N.Dak., Okla., S.Dak., Tex., Wyo.

Following modified from CalPhotos
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CalPhotos     Photo Database

 

Number of matches : 7
Query: SELECT * FROM img WHERE ready=1 and taxon like "Erysimum asperum%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Erysimum asperum
Erysimum asperum
ID: 0000 0000 0510 0963 [detail]
© 2010 Barry Breckling

Erysimum asperum
Erysimum asperum
ID: 0000 0000 0510 0964 [detail]
© 2010 Barry Breckling

Erysimum asperum
Erysimum asperum
ID: 0000 0000 0510 0965 [detail]
© 2010 Barry Breckling

Erysimum asperum
Erysimum asperum
Western Wallflower
ID: 6666 6666 0510 0513 [detail]
Gerald and Buff Corsi
© 2010 California Academy of Sciences

Erysimum asperum
Erysimum asperum
Desert Wallflower
ID: 0000 0000 0915 2246 [detail]
© 2015 Ron Wolf

Erysimum asperum
Erysimum asperum
Desert Wallflower
ID: 0000 0000 0915 2247 [detail]
© 2015 Ron Wolf

Erysimum asperum
Erysimum asperum
Desert Wallflower
ID: 0000 0000 0915 2248 [detail]
© 2015 Ron Wolf

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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