View source for Cardamine oligosperma

{{Treatment/ID
|accepted_name=Cardamine oligosperma
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=in J. Torrey and A. Gray, Fl. N. Amer.
|place=1: 85. 1838
|year=1838
}}
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Cardamine acuminata
|authority=(Nuttall) Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Cardamine hirsuta var. acuminata
|authority=Nuttall
|rank=variety
}} {{Treatment/ID/Synonym
|name=Cardamine hirsuta var. bracteata
|authority=O. E. Schulz
|rank=variety
}} {{Treatment/ID/Synonym
|name=Cardamine hirsuta subsp. oligosperma
|authority=(Nuttall) O. E. Schulz
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Cardamine hirsuta var. parviflora
|authority=Nuttall
|rank=variety
}} {{Treatment/ID/Synonym
|name=Cardamine oligosperma var. bracteata
|authority=(O. E. Schulz) G. S. Torrey
|rank=variety
}} {{Treatment/ID/Synonym
|name=Cardamine oligosperma var. lucens
|authority=G. S. Torrey
|rank=variety
}} {{Treatment/ID/Synonym
|name=Cardamine oligosperma var. unijuga
|authority=(Rydberg) G. S. Torrey
|rank=variety
}} {{Treatment/ID/Synonym
|name=Cardamine unijuga
|authority=
|rank=species
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Cardamineae;Cardamine;Cardamine oligosperma
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Cardamineae]]</div><div class="higher-taxon"><small>genus</small>[[Cardamine]]</div><div class="higher-taxon"><small>species</small>[[Cardamine oligosperma]]</div></div>
|volume=Volume 7
|mention_page=page 466, 475, 484
|treatment_page=page 479
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>or biennials; usually sparsely hirsute (at least proximally), rarely glabrous. <b>Rhizomes</b> absent. <b>Stems</b> (simple or few from base), erect to ascending, (not flexuous), unbranched or branched distally, (0.5–)0.8–3.2(–4.1) dm, usually pubescent throughout or proximally, rarely glabrous. <b>Basal</b> leaves (persistent to anthesis), rosulate, pinnately compound, 5–9(–13)-foliolate, 2–8.5(–11) cm, leaflets petiolulate or subsessile; petiole 1–6 cm; lateral leaflets petiolulate or subsessile, blade obovate to oblanceolate, smaller than terminal, margins entire or crenate; terminal leaflet (petiolule 0.1–0.7 cm), blade usually orbicular to ovate, rarely oblong, 0.4–1.5(–2.3) cm × 3–10(–13) mm, base cordate to rounded, margins entire, or crenate-dentate to obscurely 3 or 5-lobed, (surfaces often hirsute, sometimes glabrous). <b>Cauline</b> leaves 3–8, pinnately compound, similar to basal, smaller and fewer distally, petiolate, leaflets petiolulate or subsessile; petiole 0.5–2 cm, base not auriculate. <b>Racemes</b> ebracteate. <b>Fruiting</b> pedicels divaricate-ascending, (2–)3–9(–12) mm. <b>Flowers</b>: sepals oblong, 1.3–1.8(–2) × 0.5–1 mm, lateral pair not saccate basally; petals white, narrowly spatulate to oblanceolate, 2.5–3.5 × 0.9–1.5 mm (not clawed); filaments: median pairs 1.7–2.5 mm, lateral pair 1.2–2 mm; anthers ovate, 0.3–0.5 mm. <b>Fruits</b> linear, (torulose), (1.3–)1.6–2.8 cm × 1–1.7 mm; (valves glabrous or sparsely pubescent); ovules 16–36(–42) per ovary; style 0.4–1(–1.5) mm. <b>Seeds</b> brown, oblong, 1–1.6 × 0.8–1.2 mm. <b>2n</b> = 16.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Jul.
|habitat=Stream banks, shady banks, creek bottoms, lakeshores, meadows, moist areas, wooded slopes
|elevation=50-3300 m
|distribution=B.C.;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo.;Mexico (Baja California).
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Cardamine oligosperma
|authority=Nuttall
|rank=species
|parent rank=genus
|synonyms=Cardamine acuminata;Cardamine hirsuta var. acuminata;Cardamine hirsuta var. bracteata;Cardamine hirsuta subsp. oligosperma;Cardamine hirsuta var. parviflora;Cardamine oligosperma var. bracteata;Cardamine oligosperma var. lucens;Cardamine oligosperma var. unijuga;Cardamine unijuga
|basionyms=
|family=Brassicaceae
|phenology=Flowering Mar–Jul.
|habitat=Stream banks, shady banks, creek bottoms, lakeshores, meadows, moist areas, wooded slopes
|elevation=50-3300 m
|distribution=B.C.;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo.;Mexico (Baja California).
|reference=None
|publication title=in J. Torrey and A. Gray, Fl. N. Amer.
|publication year=1838
|special status=Weedy
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_738.xml
|tribe=Brassicaceae tribe Cardamineae
|genus=Cardamine
|species=Cardamine oligosperma
}}<!--

-->[[Category:Treatment]][[Category:Cardamine]]