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Limosella aquatica

Higher Taxonomy
Family: ScrophulariaceaeView DescriptionDichotomous Key

Common Name: FIGWORT FAMILY
Habit: Annual to tree, generally glandular, some +- aquatic. Stem: round to square in ×-section. Leaf: simple, generally alternate, generally +- entire; stipules generally 0 (present in Limosella). Inflorescence: spike to panicle (head-like), generally bracted, or flowers 1--4 in axils. Flower: generally bisexual; calyx lobes 4--5; corolla bilateral to radial, lobes 4--5; stamens epipetalous, 4--5, 5th a staminode in Scrophularia; pistil 1, ovary superior, chambers generally 2, placentas axile, style 1, stigma lobes generally 2. Fruit: capsule, generally +- ovoid, loculicidal or septicidal, or drupe-like.
Genera In Family: +- 65 genera, 1700 species: +- worldwide; some cultivated as ornamental (Verbascum). Note: Other taxa moved to Plantaginaceae (Antirrhinum, Bacopa, Collinsia, Cymbalaria, Digitalis, Dopatrium, Gambelia, Gratiola, Hebe, Holmgrenanthe, Keckiella, Kickxia, Limnophila, Linaria, Lindernia, Maurandella, Mohavea, Nothochelone, Penstemon, Pseudorontium, Stemodia, Synthyris, Tonella, Veronica), Orobanchaceae (Bellardia, Castilleja, Cordylanthus, Orthocarpus, Parentucellia, Pedicularis, Triphysaria), Phrymaceae (Mimulus).
eFlora Treatment Author: Margriet Wetherwax, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: LimosellaView DescriptionDichotomous Key

Common Name: MUDWORT
Habit: Annual, stoloned, occasionally partly submersed. Leaf: basal, erect; stipules generally present; petioles present or not. Inflorescence: scapose; flower 1. Flower: calyx bell-shaped, lobes 5, ovate, acute; corolla radial, bell-shaped, lobes 5, adaxially sparsely papillate; stamens 4; style generally +- terminal, stigmas generally fused, head-like. Fruit: elliptic to spheric, chambers 2 proximally, 1 distally. Seed: many, minute.
Species In Genus: +- 15 species: worldwide. Etymology: (Latin: mud seat, from habitat)

Limosella aquatica L.
NATIVE
Habit: Tufted. Leaf: petiole 3--10(30) cm; blade 5--30 mm, flat, spoon-shaped to ovate; stipules 0 or sheathing leaf base, transparent. Inflorescence: pedicels << petioles, spreading in fruit. Flower: calyx lobes 2 × tube; corolla +- 2 mm, white to +- pink, outside occasionally blue, lobes acute; stamens attached at different levels; style 0.2--0.4 mm, stout, +- curved, stigma +- 2-lobed. Fruit: 3--5 mm, elliptic to spheric. Chromosomes: 2n=40.
Ecology: Wet, muddy, periodically flooded places, fresh water; Elevation: < 3200 m. Bioregional Distribution: CaR, SNH, CCo, SnFrB, SnBr, PR, MP; Distribution Outside California: to Alaska, eastern North America; Eurasia. Flowering Time: Jun--Sep
eFlora Treatment Author: Margriet Wetherwax
Jepson Online Interchange

Previous taxon: Limosella acaulis
Next taxon: Limosella australis

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botanical illustration including Limosella aquatica

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Citation for this treatment: Margriet Wetherwax 2016. Limosella aquatica, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=31028, accessed on May 02, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 02, 2016.


Limosella aquatica
click for enlargement
© 2008 Steve Matson
Limosella aquatica
click for enlargement
© 2005 Steve Matson
Limosella aquatica
click for enlargement
© 2008 Steve Matson
Limosella aquatica
click for enlargement
© 2005 Steve Matson
Limosella aquatica
click for enlargement
© 2005 Steve Matson
Limosella aquatica
click for enlargement
© 2005 Steve Matson

More photos of Limosella aquatica in CalPhotos


Geographic subdivisions for Limosella aquatica:
CaR, SNH, CCo, SnFrB, SnBr, PR, MP;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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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).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.