View source for Lewisia pygmaea

{{Treatment/ID
|accepted_name=Lewisia pygmaea
|accepted_authority=(A. Gray) B. L. Robinson in A. Gray et al.
|publications={{Treatment/Publication
|title=in A. Gray et al., Syn. Fl. N. Amer.
|place=1: 268. 1897
|year=1897
}}
|basionyms={{Treatment/ID/Basionym
|name=Talinum pygmaeum
|authority=A. Gray
|rank=species
|publication_title=Amer. J. Sci. Arts, ser.
|publication_place=2, 33: 407. 1862 (as pygnaeum)
}} {{Treatment/ID/Basionym
|name=Calandrinia pygmaea
|authority=(A. Gray)A. Gray 1873
|rank=species
|publication_title=
|publication_place=
}}
|synonyms={{Treatment/ID/Synonym
|name=Calandrinia grayi
|authority=Britton
|rank=species
}} {{Treatment/ID/Synonym
|name=Lewisia exarticulata
|authority=H. St. John
|rank=species
}} {{Treatment/ID/Synonym
|name=Lewisia glandulosa
|authority=(Rydberg) Clay
|rank=species
}} {{Treatment/ID/Synonym
|name=Lewisia minima
|authority=(A. Nelson) A. Nelson
|rank=species
}} {{Treatment/ID/Synonym
|name=Lewisia pygmaea var. aridorum
|authority=Bartlett
|rank=variety
}} {{Treatment/ID/Synonym
|name=Lewisia pygmaea subsp. glandulosa
|authority=(Rydberg) Ferris
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Lewisia sierrae
|authority=(H. St. John) Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Oreobroma aridorum
|authority=Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Oreobroma exarticulatum
|authority=(Britton) Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Oreobroma glandulosum
|authority=A. Nelson
|rank=species
}} {{Treatment/ID/Synonym
|name=Oreobroma grayi
|authority=(A. Gray) Howell
|rank=species
}} {{Treatment/ID/Synonym
|name=Oreobroma minimum
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Oreobroma pygmaeum
|authority=
|rank=species
}}
|hierarchy=Portulacaceae;Lewisia;Lewisia pygmaea
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Portulacaceae]]</div><div class="higher-taxon"><small>genus</small>[[Lewisia]]</div><div class="higher-taxon"><small>species</small>[[Lewisia pygmaea]]</div></div>
|volume=Volume 4
|mention_page=page 476, 478, 482
|treatment_page=page 483
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Taproots </b>gradually ramified distally or shortly fusiform, rarely subnapiform. <b>Stems</b> ± prostrate or suberect, becoming reflexed in fruit, 1–6 cm. <b>Leaves</b>: basal leaves withering at or soon after anthesis, ± sessile or gradually tapered to long petiole, blade linear to linear-oblanceolate, ± flattened, 3–9 cm, margins entire, apex acute to obtuse; cauline leaves absent. <b>Inflorescences</b> 2–4(–7)-flowered in racemose cymes or with flowers borne singly; bracts 2, opposite, plus 1 subtending each successive flower if more than 1 flower, linear-oblong, linear-lanceolate, or lanceolate, (2–)4–10 mm, margins glandular-toothed, sometimes eglandular-toothed, apex acute. <b>Flowers</b> pedicellate, not disarticulate in fruit, 1.5–2 cm diam.; sepals 2, suborbiculate, broadly ovate, or obovate, 2–6 mm, herbaceous at anthesis, margins usually glandular-toothed, sometimes eglandular-toothed or rarely ± entire, apex usually truncate, sometimes rounded, obtuse, subacute, or apiculate; petals 5–9, white, pink, or magenta, sometimes green at base, narrowly oblong, elliptic, or oblanceolate, 4–10 mm; stamens (4–)5–8; stigmas 3–6; pedicel 2–5(–10) mm. <b>Capsules</b> 4–5 mm. <b>Seeds</b> 15–24, 1–2 mm, shiny, smooth. <b>2n</b> = ca. 66.</span><!--

-->{{Treatment/Body
|phenology=Flowering late spring–late summer.
|habitat=Open places in short turf or gravelly or rocky substrates
|elevation=2300-4200 m
|distribution=Alta.;B.C.;Yukon;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p>The circumscription and diagnosis of <i>Lewisia pygmaea</i> is problematic because of morphologic variability, intermediacy, and/or hybridization with <i>L. nevadensis</i> (see L. T. Dempster 1990). In the range of typical forms of <i>L. nevadensis</i> (see discussion under 11. <i>L. nevadensis</i>), one or more forms of <i>L. pygmaea</i> will also occur, but at higher elevations. Segregates of <i>L. pygmaea</i> recognized elsewhere as species include <i>L. glandulosa</i>, which occurs in rocky substrates above 3000 m in the central and southern Sierra <i>Nevada</i> and is characterized by elongate, sinuous taproots (L. T. Dempster 1990); and L. sierrae, which occurs in moist flats above 2400 m in the central Sierra <i>Nevada</i> and includes diminutive plants with irregularly eglandular-toothed (occasionally entire) sepals (B. Mathew 1989b). Dempster postulated that the variable and widely distributed <i>L. pygmaea</i> represents a hybrid species derived from <i>L. nevadensis</i> and <i>L. glandulosa</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Lewisia pygmaea
|authority=(A. Gray) B. L. Robinson in A. Gray et al.
|rank=species
|parent rank=genus
|synonyms=Calandrinia grayi;Lewisia exarticulata;Lewisia glandulosa;Lewisia minima;Lewisia pygmaea var. aridorum;Lewisia pygmaea subsp. glandulosa;Lewisia sierrae;Oreobroma aridorum;Oreobroma exarticulatum;Oreobroma glandulosum;Oreobroma grayi;Oreobroma minimum;Oreobroma pygmaeum
|basionyms=Talinum pygmaeum;Calandrinia pygmaea
|family=Portulacaceae
|phenology=Flowering late spring–late summer.
|habitat=Open places in short turf or gravelly or rocky substrates
|elevation=2300-4200 m
|distribution=Alta.;B.C.;Yukon;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
|reference=None
|publication title=in A. Gray et al., Syn. Fl. N. Amer.
|publication year=1897
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V4/V4_978.xml
|genus=Lewisia
|species=Lewisia pygmaea
}}<!--

-->[[Category:Treatment]][[Category:Lewisia]]