Jepson Herbarium
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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.
2n=10.
2 genera, 10 species: temperate North America. —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.

Key to Limnanthaceae

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.
7 species: ± coastal w North America. (Greek: marsh flower, from habitat) [Mason 1952 Univ Calif Publ Bot 25:455–512] Plants reported as Limnanthes macounii from CCo are variants of Limnanthes douglasii (Meyers et al. 2010 Syst Bot 35:552–558).

Erect, herbage glabrous to hairy.
Stem: 8–40 cm.
Leaf: 2–10 cm; leaflets 5–11, linear to ovate or oblong, entire to deeply 3-lobed.
Flower: bowl- to bell-shaped; sepals 4–8 mm; petals 8–15 mm, curving over fruit in age, white to cream, aging pink or violet, base occasionally ± yellow; filaments 2–6 mm, anthers 0.75–2 mm; style 3–6 mm.
Fruit: mericarps smooth, wrinkled, wide-ridged, or sharply tubercled. [Online Interchange]

Herbage glabrous.
Flower: sepals glabrous to sparsely hairy; petals 12–15 mm, cream, tips recurved, drying lilac; anthers ± 1 mm, cream or ± pink.
Fruit: 3.5 mm, smooth or sharply tubercled.
Winter-wet grassland, woodland, edges of vernal pools, ephemeral streams; 150–2100 m. Cascade Range Foothills, n&c Sierra Nevada Foothills, n High Sierra Nevada.

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Next taxon: Limnanthes bakeri

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].

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Bioregions in which taxon occurs	Red area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon; 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 have georeferencing or identification issues.
Chart based on elevation range in Manual and elevations and coordinates of CCH records. Data provided by the participants of the Consortium of California Herbaria. Note: About half of the CCH records include both elevation and coordinates.	Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria. View all CCH records   CCH collections by month Duplicates counted once; synonyms included. Species do not include records of infraspecific taxa. Blue line denotes Manual flowering time.