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Ephedra viridis Coville
Life   Plantae   Gymnospermae   Ephedraceae   Ephedra

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Associates · map
FamilyScientific name @ source (records)
Cronartiaceae  Peridermium ephedrae @ BPI (10)
Miridae  Coquillettia venusta @ AMNH_PBI (10)

Irbisia brachycera @ AMNH_ENT (1)

Lopidea nigridia @ AMNH_ENT (3)

Megalopsallus ephedrae @ AMNH_PBI (5)

Megalopsallus froeschneri @ AMNH_PBI (1)

Orthotylus albocostatus @ AMNH_IZC (1)

Phytocoris tenuis @ AMNH_ENT (1)

Phytocoris ventralis @ AMNH_ENT (1)
Teichosporaceae  Teichospora megastega @ BPI (2)

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Following modified from The Gymnosperm Database
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Following served from American Museum of Natural History, Plant Bug AMNH_PBI00319500 pbi_cal04l6h42
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Following modified from Flora of North America
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FNA | Family List | FNA Vol. 2 | Ephedraceae | Ephedra

12. Ephedra viridis Coville, Contr. U.S. Natl. Herb. 4: 220. 1893.

Green ephedra

Ephedra nevadensis S. Watson subvar. pluribracteata Palmer ex Stapf; E . nevadensis var. viridis (Coville) M. E. Jones

Shrubs erect, 0.5--1 m. Bark gray, cracked and irregularly fissured. Branches alternate or whorled, rigid, angle of divergence about 30°. Twigs bright green to yellow-green, becoming yellow with age, not viscid, ridges between longitudinal grooves barely papillate, smooth; internodes 1--5 cm. Terminal buds conic, 1--2 mm, apex obtuse. Leaves opposite, 2--5 mm, connate to 1/2--3/4 their length, not photosynthetic; bases thickened, brown, persistent, becoming hard, enlarged, and black; apex setaceous. Pollen cones 2--several at node, obovoid, 5--7 mm, sessile; bracts opposite, 6--10 pairs, light yellow and slightly reddened, ovate, 2--4 × 2--3 mm, membranous, slightly connate at base; bracteoles slightly exceeding bracts; sporangiophores 2--4 mm, 1/4--1/2 exserted, with 5--8 sessile to nearly sessile microsporangia. Seed cones 2--several at node, obovoid, 6--10 mm, sessile or on short, scaly peduncles; bracts opposite, 4--8 pairs, ovate, 4--7 × 2--4 mm, membranous or papery, with yellow center and base, margins entire. Seeds 2, ellipsoid, 5--8 × 2--4 mm, light brown to brown, smooth. 2 n = 28.

Coning spring. Dry rocky slopes and canyon walls; 800--2500 m; Ariz., Calif., Colo., Nev., N.Mex., Oreg., Utah, Wyo.

Updated: 2024-06-20 19:03:54 gmt
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