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Vascular Plants of California
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Limnanthes douglasii


Higher Taxonomy
Family: LimnanthaceaeView DescriptionDichotomous Key
Common Name: MEADOWFOAM FAMILY
Habit: Annual, glabrous to hairy. Stem: generally branched. Leaf: alternate, deeply pinnately lobed to 1--2-compound; stipules 0. Inflorescence: flowers solitary in axils, pedicelled. Flower: generally bisexual, radial; sepals 3--5, free; petals 3--5, free, white to pink or yellow; stamens 3, 8, or 10, free, generally in 2 whorls; nectary glands at bases of outer stamens; pistil 1, ovary deeply 2--5-lobed, style 1, from base of ovary. Fruit: mericarps 1--5, 1-seeded, ovoid to spheric, generally tubercled. Chromosomes: 2n=10.
Genera In Family: 2 genera, 10 species: temperate North America.
eFlora Treatment Author: Robert Ornduff & Nancy R. Morin
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: LimnanthesView DescriptionDichotomous Key


Common Name: MEADOWFOAM
Habit: Annual, decumbent to erect. Leaf: generally 1-odd-pinnately lobed or compound; lobes or leaflets entire to deeply lobed. Flower: sepals (4)5; petals (4)5, generally > sepals, tips toothed or jagged; stamens 8 or 10; ovary lobes 4--5. Fruit: mericarps 1--5, 2.5--4 mm, obovoid to nearly spheric, smooth, ridged, or tubercled.
Etymology: (Greek: marsh flower, from habitat) Note: Plants reported as Limnanthes macounii from CCo are variants of Limnanthes douglasii (Meyers et al. 2010 Syst Bot 35:552--558).
Reference: Mason 1952 Univ Calif Publ Bot 25:455--512
Limnanthes douglasii R. Br.
NATIVE
Habit: Erect or ascending; herbage glabrous. Stem: 3--35(100) cm. Leaf: 3--7(25 cm); leaflets 5--13, linear to lanceolate to widely ovate, entire or occasionally toothed or lobed. Flower: cup-, bell-, or funnel-shaped; sepals 4--17 mm, glabrous or margins hairy; petals 10--18 mm, white to yellow or yellow with white tips, veins purple to pink or cream, occasionally drying +- green-yellow, reflexed in fruit; filaments 3.5--8 mm, anthers 0.8--2 mm, cream to yellow, dark pink, orange-red, or +- black; style 3--8 mm. Fruit: mericarps smooth, ridged, or at least tip tubercled.

Jepson eFlora Author: Robert Ornduff & Nancy R. Morin
Reference: Mason 1952 Univ Calif Publ Bot 25:455--512
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Limnanthes bakeri
Next taxon: Limnanthes douglasii subsp. douglasii

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Citation for this treatment: Robert Ornduff & Nancy R. Morin 2012, Limnanthes douglasii, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=30971, accessed on April 19, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 19, 2024.

Limnanthes douglasii subsp. rosea
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©2007 Carol W. Witham
Limnanthes douglasii subsp. rosea
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©2003 George W. Hartwell
Limnanthes douglasii subsp. rosea
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©2018 Neal Kramer
Limnanthes douglasii
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©2008 California Academy of Sciences
Limnanthes douglasii subsp. rosea
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©2020 Neal Kramer

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Geographic subdivisions for Limnanthes douglasii:
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).





 

Data provided by the participants of the  Consortium of California Herbaria.
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Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).