Difference between revisions of "Ephedra trifurca"
Botany (Fortieth Parallel): 329. 1871.
Common names: Mexican-tea
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><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 | -->{{Treatment/Body | ||
| + | |phenology=Coning late winter–early spring. | ||
|habitat=Dry rocky slopes to flat sandy areas | |habitat=Dry rocky slopes to flat sandy areas | ||
|elevation=500–2000 m | |elevation=500–2000 m | ||
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|basionyms= | |basionyms= | ||
|family=Ephedraceae | |family=Ephedraceae | ||
| + | |phenology=Coning late winter–early spring. | ||
|habitat=Dry rocky slopes to flat sandy areas | |habitat=Dry rocky slopes to flat sandy areas | ||
|elevation=500–2000 m | |elevation=500–2000 m | ||
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|publication year=1871 | |publication year=1871 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna- | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_18.xml |
|genus=Ephedra | |genus=Ephedra | ||
|species=Ephedra trifurca | |species=Ephedra trifurca | ||
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-->[[Category:Treatment]][[Category:Ephedra]] | -->[[Category:Treatment]][[Category:Ephedra]] | ||
Revision as of 13:13, 27 July 2019
Shrubs erect, 0.5–5 m. Bark gray, cracked and irregularly fissured. Branches alternate or whorled, rigid, angle of divergence about 30°. Twigs pale green, becoming yellow, then gray with age, glaucous, with numerous very fine longitudinal grooves; internodes 3–10 cm. Terminal buds spinelike, to 10 mm. Leaves in whorls of 3, 5–15 mm, connate to 1/2–3/4 their length; bases becoming gray and shredded with age; apex spinose. Pollen 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. Seed 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. Seeds 1(–3), ellipsoid, 8–15 × 1.5–3 mm, light brown, smooth.
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
The hybrid Ephedra × intermixta is discussed under E. torreyana.
Selected References
None.
Lower Taxa
None.