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.
Revision as of 00:27, 30 July 2020 by imported>Volume Importer
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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.

"/2-3/4" is not declared as a valid unit of measurement for this property.

... 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 +
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 +
light-brown +
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 +