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Encelia virginensis A. Nelson
VIRGIN RIVER BRITTLEBUSH
Life   Plantae   Dicotyledoneae   Asteraceae   Encelia

Encelia virginensis
© Copyright New York Botanical Garden, 2013 · -9
Encelia virginensis

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Associates · map
FamilyScientific name @ source (records)
Dictyopharidae  Ticida dammersi @ UCR_ENT (1)

Timonidia @ UCR_ENT (1)
Geocoridae  Geocoris @ UCR_ENT (47)
Kinnaridae  Oeclidius brickellus @ UCR_ENT (4)
Lygaeidae  Nysius @ UCR_ENT (11)

Xyonysius californicus @ UCR_ENT (37)
Megachilidae  Ashmeadiella cubiceps @ BBSL (1)

Coelioxys mitchelli @ BBSL (1)

Megachile rossi @ BBSL (1)

Megachile xerophila @ BBSL (5)

Stelis anthracina @ BBSL__RENO (1)
Miridae  Aoplonema princeps @ AMNH_PBI (4)

Atomoscelis onustus @ UCR_ENT (1)

Irbisia brachycera @ UCR_ENT (3)

Lopidea marginata @ UCR_ENT (2)

Lygus atriflavus @ UCR_ENT (1)

Lygus elisus @ UCR_ENT (22); AMNH_IZC (1)

Macrotylus @ AMNH_PBI (1)

Poecilocapsus lineatus @ UCR_ENT (1)

Pygovepres vaccinicola @ AMNH_PBI (1)

Rhinacloa forticornis @ UCR_ENT (6)

Scalponotatus maturus @ AMNH_PBI (5)
Nogodinidae  Danepteryx barbarae @ UCR_ENT (1)

Danepteryx manca @ UCR_ENT (2)

Dictyobia atra @ UCR_ENT (2)

Dictyobia @ UCR_ENT (1)
Rhopalidae  Arhyssus crassus @ UCR_ENT (3)

Arhyssus lateralis @ UCR_ENT (5)

Harmostes angustatus @ UCR_ENT (9)

Harmostes dorsalis @ UCR_ENT (1)

Harmostes reflexulus @ UCR_ENT (1)

Liorhyssus hyalinus @ UCR_ENT (3)

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FNA Vol. 21 Page 119, 121 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 21 | Asteraceae | Encelia

5. Encelia virginensis A. Nelson, Bot. Gaz. 37: 272. 1904.

Encelia frutescens (A. Gray) A. Gray var. virginensis (A. Nelson) S. F. Blake

Shrubs, 50—150 cm. Stems with slender branches from bases, hairy, developing fissured barks. Leaves cauline; petioles 2—7 mm; blades gray-green, narrowly ovate to deltate, 12—25 mm, apices acute or obtuse, faces sparsely canescent and strigose. Heads borne singly. Peduncles canescent. Involucres 9—13 mm. Phyllaries narrowly ovate. Ray florets 11—21; corolla laminae 8—15 mm. Disc corollas yellow, 5—6 mm. Cypselae 5—8 mm; pappi usually 0, rarely of 1—2 bristlelike awns. 2 n = 36.

Flowering Apr—Jun, Dec. Desert flats, rocky slopes, roadsides; 500—1500 m; Ariz., Calif., Nev., N.Mex., Utah.

In the mountains of the eastern Mojave Desert in California, Encelia virginensis may intergrade with E. actoni at higher elevations, probably as a result of hybridization. Plants of E. virginensis in New Mexico may be adventive.

Updated: 2024-04-13 15:42:25 gmt
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