View source for Ephedra trifurca

{{Treatment/ID
|accepted_name=Ephedra trifurca
|accepted_authority=Torrey ex S. Watson
|publications={{Treatment/Publication
|title=Botany (Fortieth Parallel):
|place=329. 1871
|year=1871
}}
|common_names=Mexican-tea
|basionyms=
|synonyms=
|hierarchy=Ephedraceae;Ephedra;Ephedra trifurca
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Ephedraceae]]</div><div class="higher-taxon"><small>genus</small>[[Ephedra]]</div><div class="higher-taxon"><small>species</small>[[Ephedra trifurca]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs </b>erect, 0.5–5 m. <b>Bark</b> gray, cracked and irregularly fissured. <b>Branches</b> alternate or whorled, rigid, angle of divergence about 30°. <b>Twigs</b> pale green, becoming yellow, then gray with age, glaucous, with numerous very fine longitudinal grooves; internodes 3–10 cm. <b>Terminal</b> buds spinelike, to 10 mm. <b>Leaves</b> in whorls of 3, 5–15 mm, connate to 1/2–3/4 their length; bases becoming gray and shredded with age; apex spinose. <b>Pollen</b> cones 1–several at node, obovoid, 6–10 mm, on short, scaly peduncles; bracts in 8–12 whorls of 3, reddish brown, obovate, slightly clawed, 3–4 × 2–3 mm, membranous; bracteoles nearly equaling bracts; sporangiophores 4–5 mm, exserted to 1/4 their length, with 4–5 short-stalked microsporangia. <b>Seed</b> cones 1–several at node, obovoid, 10–15 mm, on short, scaly peduncles (rarely sessile); bracts in 6–9 whorls of 3, circular, 8–12 × 8–12 mm, papery, translucent with reddish brown center and base, base clawed, margins entire. <b>Seeds</b> 1(–3), ellipsoid, 8–15 × 1.5–3 mm, light brown, smooth.</span><!--

-->{{Treatment/Body
|phenology=Coning late winter–early spring.
|habitat=Dry rocky slopes to flat sandy areas
|elevation=500–2000 m
|distribution=Ariz.;Calif.;N.Mex.;Tex.;Mexico in Baja California;Chihuahua;Coahuila;Sonora.
|discussion=<p>The hybrid <i>Ephedra</i> × intermixta is discussed under <i>E. torreyana</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Ephedra trifurca
|authority=Torrey ex S. Watson
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Ephedraceae
|phenology=Coning late winter–early spring.
|habitat=Dry rocky slopes to flat sandy areas
|elevation=500–2000 m
|distribution=Ariz.;Calif.;N.Mex.;Tex.;Mexico in Baja California;Chihuahua;Coahuila;Sonora.
|reference=None
|publication title=Botany (Fortieth Parallel):
|publication year=1871
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V2/V2_18.xml
|genus=Ephedra
|species=Ephedra trifurca
}}<!--

-->[[Category:Treatment]][[Category:Ephedra]]