Difference between revisions of "Rorippa dubia"
J. Jap. Bot. 30: 196. 1955.
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|name=Sisymbrium dubium | |name=Sisymbrium dubium | ||
|authority=Persoon | |authority=Persoon | ||
| + | |rank=species | ||
|publication_title=Syn. Pl. | |publication_title=Syn. Pl. | ||
|publication_place=2: 199. 1806, | |publication_place=2: 199. 1806, | ||
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|name=Nasturtium heterophyllum | |name=Nasturtium heterophyllum | ||
|authority=Blume | |authority=Blume | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Rorippa heterophylla | |name=Rorippa heterophylla | ||
|authority=(Blume) R. O. Williams | |authority=(Blume) R. O. Williams | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Rorippa indica var. apetala | |name=Rorippa indica var. apetala | ||
|authority=(de Candolle) Hochreutiner | |authority=(de Candolle) Hochreutiner | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Brassicaceae;Brassicaceae tribe Cardamineae;Rorippa;Rorippa dubia | |hierarchy=Brassicaceae;Brassicaceae tribe Cardamineae;Rorippa;Rorippa dubia | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Rorippa dubia | name=Rorippa dubia | ||
| − | |||
|authority=(Persoon) H. Hara | |authority=(Persoon) H. Hara | ||
|rank=species | |rank=species | ||
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|publication year=1955 | |publication year=1955 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V7/V7_778.xml |
|tribe=Brassicaceae tribe Cardamineae | |tribe=Brassicaceae tribe Cardamineae | ||
|genus=Rorippa | |genus=Rorippa | ||
Revision as of 22:19, 16 December 2019
Annuals; usually glabrous, rarely sparsely pubescent. Stems (simple or branched from base), erect or ascending, branched proximally and distally, (0.4–)1.5–3.3(–4.5) dm, (glabrous or sparsely pubescent proximally). Basal leaves not rosulate; blade margins pinnatifid. Cauline leaves petiolate (to 4 cm) or (distal) sessile; blade lyrate-pinnatipartite or undivided, obovate, oblong, or lanceolate, (2–)3–11(–15) cm × (5–)10–30(–50) mm, (lateral lobes smaller than terminal), base auriculate or not, margins entire, irregularly crenate, or serrate (entire or serrulate distally). Racemes elongated. Fruiting pedicels divaricate, straight, (2–)3–8(–10) mm. Flowers: sepals erect, oblong-linear, (2–)2.5–3 × 0.5–0.7 mm; petals (usually absent), yellow, linear or narrowly oblanceolate, 1–1.5 × 0.2–0.7 mm, (shorter than sepals); median filaments 1.5–2.8 mm; anthers oblong, 0.5–0.8 mm. Fruits siliques, straight, linear, (15–)25–40 × 0.7–0.9(–1) mm; ovules 70–90 per ovary; style 0.2–1(–1.5) mm, (stout, as thick as fruit). Seeds uniseriate, reddish brown, ovate-orbicular, 0.5–0.8 mm (0.4–0.6 mm diam.), foveolate. 2n = 32, 48.
Phenology: Flowering often year-round.
Habitat: Waste areas, slopes, roadsides, wet grounds, grassy places, field margins
Elevation: 0-500[-3700] m
Distribution
La., Miss., Oreg., se Asia, introduced also in Central America, South America.
Discussion
Rorippa dubia was treated by R. L. Stuckey (1972) as R. heterophylla and by R. C. Rollins (1993) as R. indica var. apetala. Both authors overlooked H. Hara’s (1955b) comprehensive account of its typification and that of R. indica.
Selected References
None.