View source for Linum puberulum

{{Treatment/ID
|accepted_name=Linum puberulum
|accepted_authority=(Engelmann) A. Heller
|publications={{Treatment/Publication
|title=Pl. World
|place=1: 22. 1897
|year=1897
}}
|common_names=Plains flax
|basionyms={{Treatment/ID/Basionym
|name=Linum rigidum var. puberulum
|authority=Engelmann
|rank=variety
|publication_title=Smithsonian Contr. Knowl.
|publication_place=3(5): 25. 1852
}}
|synonyms=
|hierarchy=Linaceae;Linum;Linum sect. Linopsis;Linum puberulum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Linaceae]]</div><div class="higher-taxon"><small>genus</small>[[Linum]]</div><div class="higher-taxon"><small>section</small>[[Linum sect. Linopsis]]</div><div class="higher-taxon"><small>species</small>[[Linum puberulum]]</div></div>
|volume=Volume 12
|mention_page=page 379
|treatment_page=page 388
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism duration;whole_organism duration;whole_organism some measurement;whole_organism pubescence;whole_organism growth form"><b>Herbs,</b> annual or short-lived perennial, 4–25 cm, densely and finely gray-puberulent throughout.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem architecture;stem growth form or texture"><b>Stems </b>ascending, branched at base, herbaceous throughout.</span> <span class="statement" id="st-d0_s2" data-properties="leaf arrangement;leaf position;leaf arrangement;leaf orientation"><b>Leaves </b>alternate or sometimes proximal leaves opposite, appressed-ascending;</span> <span class="statement" id="st-d0_s3" data-properties="stipular gland presence">stipular glands present (conspicuous);</span> <span class="statement" id="st-d0_s4" data-properties="blade arrangement or course or shape;blade length;blade width;margin shape;margin shape;leaf shape;leaf architecture or pubescence or shape">blade linear, 7–20 × 0.6–1.5 mm, margins entire or distal leaves sparsely glandular-toothed, ciliate, apex acute;</span> <span class="statement" id="st-d0_s5" data-properties="apex shape;apex architecture">1-nerved.</span> <span class="statement" id="st-d0_s6" data-properties=""><b>Inflorescences </b>open panicles.</span> <span class="statement" id="st-d0_s7" data-properties="pedicel some measurement"><b>Pedicels </b>5–10 mm.</span> <span class="statement" id="st-d0_s8" data-properties="sepal life cycle;sepal shape;sepal some measurement;margin texture;margin shape;apex shape;apex pubescence"><b>Flowers:</b> sepals falling tardily, lanceolate, 4–7 mm, margins of inner sepals scarious, glandular-toothed, apex acute to acuminate, puberulent at least on midrib;</span> <span class="statement" id="st-d0_s9" data-properties="flower position;flower architecture">outer 3-nerved;</span> <span class="statement" id="st-d0_s10" data-properties="petal coloration;petal shape;petal shape;petal some measurement;base coloration;base coloration">petals yellowish orange to salmon, with maroon or reddish base, obcordate or broadly obovate, 9–15 mm;</span> <span class="statement" id="st-d0_s11" data-properties="stamen some measurement">stamens 4–7 mm;</span> <span class="statement" id="st-d0_s12" data-properties="anther some measurement">anthers 0.6–1.4 mm;</span> <span class="statement" id="st-d0_s13" data-properties="staminodium presence">staminodia absent;</span> <span class="statement" id="st-d0_s14" data-properties="style fusion;style some measurement">styles connate nearly to apex, 3–7 mm;</span> <span class="statement" id="st-d0_s15" data-properties="stigma coloration;stigma architecture or shape">stigmas dark, capitate.</span> <span class="statement" id="st-d0_s16" data-properties="capsule shape;capsule length;capsule width;apex shape;apex dehiscence;segment quantity;segment architecture;segment duration;false septum architecture;fringe architecture or fragility;distal part pubescence or texture;margin architecture or pubescence or shape"><b>Capsules </b>ovoid-ellipsoid, 3.5–4 × 2.5–5 mm, apex obtuse, dehiscing into 5, 2-seeded segments, segments persistent on plant, false septa complete, proximal margin not terminating in loose fringe, distal part cartilaginous, margins ciliate.</span> <span class="statement" id="st-d0_s17" data-properties="seed length;seed width;2n chromosome quantity"><b>Seeds </b>1.5–3 × 0.9–1.3 mm. <b>2n</b> = 30.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Oct.
|habitat=Dry, open areas, rocky, sandy, limestone, gypsum, or sometimes clay soils.
|elevation=300–2500 m.
|distribution=Ariz.;Calif.;Colo.;Nebr.;Nev.;N.Mex.;Tex.;Utah;Wyo.;Mexico (Chihuahua);Mexico (Coahuila);Mexico (Sonora)
|discussion=<p>Corollas of Linum puberulum are broadly bowl-shaped. The filaments and styles are pale pink; the stigmas are dark maroon. The pollen is bright yellow; on herbarium specimens, the anthers are golden yellow to orangish yellow, drying darker. In some flowers of L. puberulum, the styles seem to be eccentric. C. M. Rogers (1968) noted that L. puberulum is the only hairy species of Linum in western North America with united styles; its gray indument and complete false septa differentiate it from L. vernale, which is glabrous and has incomplete false septa. Linum puberulum is fairly common in the Rocky Mountain foothills and high plains; it occurs in the mountains in the eastern Mojave Desert.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Linum puberulum
|authority=(Engelmann) A. Heller
|rank=species
|parent rank=section
|synonyms=
|basionyms=Linum rigidum var. puberulum
|family=Linaceae
|phenology=Flowering May–Oct.
|habitat=Dry, open areas, rocky, sandy, limestone, gypsum, or sometimes clay soils.
|elevation=300–2500 m.
|distribution=Ariz.;Calif.;Colo.;Nebr.;Nev.;N.Mex.;Tex.;Utah;Wyo.;Mexico (Chihuahua);Mexico (Coahuila);Mexico (Sonora)
|reference=None
|publication title=Pl. World
|publication year=1897
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V12/V12_655.xml
|genus=Linum
|section=Linum sect. Linopsis
|species=Linum puberulum
|2n chromosome quantity=30
|anther some measurement=0.6mm;1.4mm
|apex architecture=1-nerved
|apex dehiscence=dehiscing
|apex pubescence=puberulent
|apex shape=obtuse;acute;acuminate
|base coloration=reddish;maroon
|blade arrangement or course or shape=linear
|blade length=7mm;20mm
|blade width=0.6mm;1.5mm
|capsule length=3.5mm;4mm
|capsule shape=ovoid-ellipsoid
|capsule width=2.5mm;5mm
|distal part pubescence or texture=cartilaginous
|false septum architecture=complete
|flower architecture=3-nerved
|flower position=outer
|fringe architecture or fragility=loose
|leaf architecture or pubescence or shape=ciliate
|leaf arrangement=opposite;alternate
|leaf orientation=appressed-ascending
|leaf position=proximal
|leaf shape=glandular-toothed
|margin architecture or pubescence or shape=ciliate
|margin shape=glandular-toothed;distal;entire
|margin texture=scarious
|pedicel some measurement=5mm;10mm
|petal coloration=yellowish orange;salmon
|petal shape=obovate;obcordate
|petal some measurement=9mm;15mm
|seed length=1.5mm;3mm
|seed width=0.9mm;1.3mm
|segment architecture=2-seeded
|segment duration=persistent
|segment quantity=5
|sepal life cycle=falling
|sepal shape=lanceolate
|sepal some measurement=4mm;7mm
|stamen some measurement=4mm;7mm
|staminodium presence=absent
|stem architecture=branched
|stem growth form or texture=herbaceous
|stem orientation=ascending
|stigma architecture or shape=capitate
|stigma coloration=dark
|stipular gland presence=absent
|style fusion=connate
|style some measurement=3mm;7mm
|whole_organism duration=perennial;short-lived;annual
|whole_organism growth form=herb
|whole_organism pubescence=gray-puberulent
|whole_organism some measurement=4cm;25cm
}}<!--

-->[[Category:Treatment]][[Category:Linum sect. Linopsis]]