Ephedra fasciculata

A. Nelson

Amer. J. Bot. 21: 573. 1934.

Common names: Fasciculate ephedra
Endemic
Synonyms: Ephedra clokeyi Cutler Ephedra fasciculata var. clokeyi (Cutler) Clokey
Treatment appears in FNA Volume 2.

Shrubs erect or prostrate, 0.5–1 m. Bark gray, cracked and fissured. Branches opposite or whorled, rigid, angle of divergence about 30°. Twigs pale green, becoming yellow with age, not viscid, usually smooth or very slightly scabrous, with numerous longitudinal grooves; internodes 1–5 cm. Terminal buds conic, 1–3 mm, apex obtuse. Leaves opposite, 1–3 mm, connate to 1/2–3/4 their length; bases membranous, brown, shredding and becoming gray with age, ± persistent; apex obtuse. Pollen cones 2–several at node, ellipsoid to obovoid, 4–8 mm, sessile; bracts opposite, 4–8 pairs, light yellow, obovate, 2–3 × 2 mm, membranous, slightly connate at base; bracteoles exceeding bracts; sporangiophores 3–9 mm, 1/4–3/4 exserted, with 6–10 sessile to short-stalked (less than 1 mm) microsporangia. Seed-cones 2–several at node, obovoid to ellipsoid, 6–13 mm, sessile or on short peduncles; bracts opposite, 4–7 pairs, elliptic, 3–7 × 2–4 mm, membranous with light-brown to green, thickened center and base, slightly connate at base, margins entire. Seeds 1 (–2), ellipsoid, 5–12 × 3–5 mm, light-brown, longitudinally furrowed.


Phenology: Coning March–April.
Habitat: Dry rocky slopes, washes, and sandy areas
Elevation: 300–1200 m

Distribution

V2 388-distribution-map.gif

Ariz., Calif., Nev., Utah.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Ephedra fasciculata"
Dennis Wm. Stevenson +
A. Nelson +
fissured +
persistent +
membranous +
light yellow +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
obovate +
membranous +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
whorled +  and opposite +
yellowish green;olive-green +
light-brown +  and green +
Fasciculate ephedra +
on short to long peduncle +, sessile +  and compound +
subtending +
Ariz. +, Calif. +, Nev. +  and Utah. +
300–1200 m +
Dry rocky slopes, washes, and sandy areas +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
ephemeral +
connate +
0;1/2-3/4 +
photosynthetic +
scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
sessile +  and short-stalked +
single-integumented +
Coning March–April. +
ellipsoid +  and obovoid +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
whorled +, opposite +  and overlapping +
fleshy +, papery +  and membranous +
Amer. J. Bot. +
ellipsoid;ovoid obovoid or nearly globose +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
smooth to scabrous +
ellipsoid +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Ephedra clokeyi +  and Ephedra fasciculata var. clokeyi +
Ephedra fasciculata +
species +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not viscid +
yellow +  and pale green +
prostrate +  and erect +