View source for Subularia aquatica subsp. americana

{{Treatment/ID
|accepted_name=Subularia aquatica subsp. americana
|accepted_authority=G. A. Mulligan & Calder
|publications={{Treatment/Publication
|title=Rhodora
|place=66: 132, plate 1295, fig. 1. 1964
|year=1964
}}
|common_names=Awlwort
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Subularia aquatica var. americana
|authority=(G. A. Mulligan & Calder) B. Boivin
|rank=variety
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Cardamineae;Subularia;Subularia aquatica;Subularia aquatica subsp. americana
|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>[[Subularia]]</div><div class="higher-taxon"><small>species</small>[[Subularia aquatica]]</div><div class="higher-taxon"><small>subspecies</small>[[Subularia aquatica subsp. americana]]</div></div>
|volume=Volume 7
|mention_page=page 510
|treatment_page=page 509
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>(0.05–)0.15–1.5(–2.3) dm. <b>Basal</b> leaves erect or ascending, blade subulate, (0.5–)1–7(–10) cm, margins entire; cauline absent. <b>Racemes</b> (1 or) 2–12(–18)-flowered. <b>Fruiting</b> pedicels usually forming 30–50º angle with rachis, slender or slightly stout, 1–7(–10) mm, (sometimes terminal flower on longer pedicel to 18 mm). <b>Flowers</b> chasmogamous or cleistogamous; sepals usually persistent, rarely caducous, (0.5–)0.7–1(–1.3) × 0.2–0.5(–0.7) mm; petals 1.2–1.5 × 0.2–0.5 mm; filaments 0.7–1 mm; anthers 0.1–0.2 mm; gynophore 0.2–0.7(–1) mm. <b>Fruits</b> (0.15–)0.2–0.35(–0.55) cm × 1.2–2(–2.5) mm. <b>Seeds</b> light brown, 0.8–1 × 0.5–0.8 mm. <b>2n</b> = 30.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Oct.
|habitat=Muddy pool margins, rocky gravelly bottoms, shallow stream pools, wet sedge meadows, shallow sandy water flats, muddy tidal flats, salt marshes, gravelly lake beaches, stream shorelines, pools and lakes to 1.5 m
|elevation=0-3200 m
|distribution=Greenland;B.C.;Man.;Nfld. and Labr.;N.W.T.;N.S.;Ont.;Que.;Sask.;Yukon;Alaska;Calif.;Colo.;Idaho;Maine;Mich.;Minn.;N.H.;N.Y.;Utah;Vt.;Wash.;Wyo.
|discussion=<p>Subspecies americana appears to be the sole representative of <i>Subularia</i> in North America. It differs from subsp. aquatica, which is restricted to northern Europe and Russia, by having persistent (versus caducous) sepals, fruiting pedicels ascending at 30–50º (versus 50–90º) angles, and broadly ellipsoid to broadly obovoid (versus ellipsoid) fruits. G. A. Mulligan and J. A. Calder (1964) indicated that plants slightly intermediate between the two subspecies grow sporadically in North America, and it is not known whether they represent hybrids.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Subularia aquatica subsp. americana
|authority=G. A. Mulligan & Calder
|rank=subspecies
|parent rank=species
|synonyms=Subularia aquatica var. americana
|basionyms=
|family=Brassicaceae
|phenology=Flowering Jul–Oct.
|habitat=Muddy pool margins, rocky gravelly bottoms, shallow stream pools, wet sedge meadows, shallow sandy water flats, muddy tidal flats, salt marshes, gravelly lake beaches, stream shorelines, pools and lakes to 1.5 m
|elevation=0-3200 m
|distribution=Greenland;B.C.;Man.;Nfld. and Labr.;N.W.T.;N.S.;Ont.;Que.;Sask.;Yukon;Alaska;Calif.;Colo.;Idaho;Maine;Mich.;Minn.;N.H.;N.Y.;Utah;Vt.;Wash.;Wyo.
|reference=None
|publication title=Rhodora
|publication year=1964
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V7/V7_799.xml
|tribe=Brassicaceae tribe Cardamineae
|genus=Subularia
|species=Subularia aquatica
|subspecies=Subularia aquatica subsp. americana
}}<!--

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