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Atriplex confertifolia (Torr. &. Frém.) S. Watson
SHADSCALE SALTBUSH
Shadscale

Life   Plantae   Dicotyledoneae   Chenopodiaceae   Atriplex


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FamilyScientific name @ source (records)
Apidae  Melissodes montana @ BBSL (1)
Cicadellidae  Athysanella ( @ AMNH_PBI (1)
Coccidae  Ceroplastes irregularis @ CSCA_TCN (1)
Dactylopiidae  Dactylopius confusus @ CSCA_TCN (1)
Diaspididae  Aonidomytilus incisus @ CSCA_TCN (6)
Eriococcidae  Eriococcus barri @ CSCA_TCN (1)
Halictidae  Agapostemon angelicus @ BBSL (1)
Miridae  Clivinema @ AMNH_ENT (2)

Dichrooscytus uhleri @ AMNH_ENT (1)

Hoplomachidea consors @ AMNH_IZC (1)

Lopidea picta @ AMNH_ENT (2)

Lygus elisus @ AMNH_PBI (2)

Megalopsallus parapunctipes @ AMNH_PBI (4)

Orthotylus brindleyi @ AMNH_PBI (6)

Orthotylus stitti @ AMNH_PBI (4)

Orthotylus @ AMNH_PBI (4)

Phytocoris albidosquamus @ AMNH_ENT (21)

Phytocoris consors @ AMNH_PBI (4)

Phytocoris hirsuticus @ AMNH_ENT (1)

Phytocoris plenus @ AMNH_ENT (1)

Pseudopsallus repertus @ AMNH_ENT (1)
Pseudococcidae  Chorizococcus polyporus @ CSCA_TCN (2)

Distichlicoccus salinus @ CSCA_TCN (2)

Humococcus atriplicis @ CSCA_TCN (2)

Phenacoccus solenopsis @ CSCA_TCN (3)

Puto atriplicis @ CSCA_TCN (6)

Spilococcus atriplicis @ CSCA_TCN (3)
Pucciniaceae  Uromyces shearianus @ BPI (4)
Uropyxidaceae  Aecidium atriplicis @ BPI (1)

Aecidium chenopodii-fruticosi @ BPI (1)

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FNA | Family List | FNA Vol. 4 | Chenopodiaceae | Atriplex

56. Atriplex confertifolia (Torrey & Frémont) S. Watson, Proc. Amer. Acad. Arts. 9: 119. 1874.

Shadscale

Obione confertifolia Torrey & Frémont in J. C. Frémont, Rep. Exped. Rocky Mts., 318. 1845; Atriplex collina Wooton & Standley; A. subconferta Rydberg; O. rigida Torrey & Frémont

Shrubs, dioecious, 3-8 dm, spinescent. Leaves persistent, alternate; petiole 1-4 mm; blade orbiculate to ovate, elliptic, or oval, 9-25(-45) × 4-20(-25) mm, margin entire, apex obtuse. Staminate flowers yellow, in clusters 2-4 mm wide or in spikes to 1 cm, axillary, in foliose-bracteate, divaricately branched panicles 3-15 cm. Pistillate flowers in similar paniculate inflorescences. Fruiting bracteoles sessile or subsessile, suborbiculate to rhombic or elliptic, 4-12 mm and wide, body indurate, terminal teeth distinct, foliaceous, shorter than bracteoles, entire or toothed below, terminal teeth spreading at maturity, faces smooth, lacking appendages. Seeds 1.5-2 mm wide. 2 n = 18, 36, 54+.

Flowering spring-fall. Gravelly to fine-textured soils in greasewood, mat-atriplex, other salt desert shrub, sagebrush, pinyon-juniper, and ponderosa pine communities; 600-2200 m; Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., N.Dak., Oreg., Tex., Utah, Wyo.

Shadscale forms hybrids with Atriplex canescens, A . garrettii, A . corrugata , and A . gardneri varieties. It is, however, closely allied to A. parryi and A. spinifera . The plants are widely dispersed, typically on saline substrates but less commonly on essentially non-saline ones, through large areas of the western United States and adjacent Canada and Mexico, on both raw and exposed geological strata and on alluvium.

Updated: 2024-04-13 15:37:38 gmt
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