View source for Atriplex argentea var. longitrichoma

{{Treatment/ID
|accepted_name=Atriplex argentea var. longitrichoma
|accepted_authority=(Stutz
|publications={{Treatment/Publication
|title=Rhodora
|place=102: 421. 2001
|year=2001
}}
|common_names=Pahrump orach
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Atriplex longitrichoma
|authority=Stutz
|rank=species
|publication_title=G. L. Chu &amp; S. C. Sanderson, Madroño
|publication_place=45: 128, figs. 1, 2(left), 3. 1998
}}
|synonyms=
|hierarchy=Chenopodiaceae;Atriplex;Atriplex subg. Obione;Atriplex sect. Obione;Atriplex subsect. Argenteae;Atriplex argentea;Atriplex argentea var. longitrichoma
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Chenopodiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Atriplex]]</div><div class="higher-taxon"><small>subgenus</small>[[Atriplex subg. Obione]]</div><div class="higher-taxon"><small>section</small>[[Atriplex sect. Obione]]</div><div class="higher-taxon"><small>subsection</small>[[Atriplex subsect. Argenteae]]</div><div class="higher-taxon"><small>species</small>[[Atriplex argentea]]</div><div class="higher-taxon"><small>variety</small>[[Atriplex argentea var. longitrichoma]]</div></div>
|volume=Volume 4
|mention_page=page 350, 352
|treatment_page=page 351
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>densely branched, mostly forming low broad clumps, 0.9–3 dm; branches terete, spreading or ascending, proximal ones to 30 cm, obscured by clavate unicellular trichomes. <b>Leaves</b> sessile or some petiolate; blade elliptic to ovate, oval, or lanceolate, 8–35 × 5–18 mm, base narrowly cuneate, margin entire, grayish scurfy. <b>Flowers</b> in mixed axillary glomerules. <b>Fruiting</b> bracteoles substipitate, ovate to obovate or suborbicular in profile, 5–6 × 5–6 mm, compressed or some thickened, margin deeply and acutely dentate, faces naked or covered with few to numerous appendages. <b>2n</b> = 36.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–fall.
|habitat=Saline valley bottoms, with shrubby saltbush, creosote bush, mesquite, and annual weedy grasses and forbs
|elevation=elevation not known
|distribution=Calif.;Nev.
|discussion=<p>Except for its abundant and elongate trichomes, <i>Atriplex argentea </i>var.<i> longitrichoma</i> is a close match for the closely allied <i></i>var.<i> hillmanii</i>. As in practically all other herbaceous <i>Atriplex</i>, the features of fruiting bracteoles are variable and transitional to those of other related taxa. The authors of A. longitrichoma indicated several differences between their new entity and A. hillmanii, e.g., size of fruiting bracteoles, “5–6 mm, 5–6 mm wide, vs. 3–4 mm, 3-4 mm wide.” Actual measurements of A. hillmanii bracteoles indicate a size range of 3.5–6.2 mm in length and 3.7–7.2 mm in width. Leaf blade measurements cited by Stutz et al. are “25–35 mm, 10–13 mm wide.” Leaf blades in the type series cited by those authors actually measure 8–40 mm and 5–18 mm wide. It is true that the shape of the leaf blade base is rather consistent in <i></i>var.<i> longitrichoma</i>, tapering to a winged petiole or tapering to a sessile base. However, leaves with that identical shape are scattered throughout the range of <i></i>var.<i> hillmanii</i>. The protolog of the taxon cites plant size as 10–20 cm tall, but the central stem in one of the isotypes is a full 30 cm tall.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Atriplex argentea var. longitrichoma
|authority=(Stutz
|rank=variety
|parent rank=species
|synonyms=
|basionyms=Atriplex longitrichoma
|family=Chenopodiaceae
|phenology=Flowering summer–fall.
|habitat=Saline valley bottoms, with shrubby saltbush, creosote bush, mesquite, and annual weedy grasses and forbs
|elevation=elevation not known
|distribution=Calif.;Nev.
|reference=None
|publication title=Rhodora
|publication year=2001
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V4/V4_675.xml
|genus=Atriplex
|subgenus=Atriplex subg. Obione
|section=Atriplex sect. Obione
|subsection=Atriplex subsect. Argenteae
|species=Atriplex argentea
|variety=Atriplex argentea var. longitrichoma
}}<!--

-->[[Category:Treatment]][[Category:Atriplex argentea]]