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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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LIMNANTHACEAE

MEADOWFOAM FAMILY

Robert Ornduff

Annual, glabrous to hairy
Stem generally branched
Leaves alternate, deeply pinnately lobed to 1–2-compound; stipules 0
Inflorescence: flowers solitary in axils, peduncled
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; pistils 2–5, ± free, 1-ovuled, styles fused except sometimes at tip
Fruit: nutlets 1–5, ovoid to spheric, generally tubercled
Genera in family: 2 genera, 10 species: temp North America
Chromosomes: 2n=10 for all species

LIMNANTHES

MEADOWFOAM

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; pistils 4–5
Fruit: nutlets 1–5, smooth or tubercled
Species in genus: 9 species: ± coastal w North America
Etymology: (Greek: marsh flower, from habitat)
Reference: [Mason 1952 Univ Calif Publs Bot 25:455–512]
Sect. Inflexae merits critical review. Fls spring.

Native

L. alba Benth.


Stem < 30 cm
Leaf < 10 cm; leaflets 5–9, < 15 mm, linear to ovate, entire to deeply 3-lobed
Flower cup- to bell-shaped; sepals 7–8 mm; petals 10–15 mm, white; stamens 5–6 mm, anthers 2 mm; style 5–6 mm
Fruit: nutlets, 3–4 mm, obovoid, smooth, wrinkled, widely ridged, or sharply tubercled
Ecology: Winter-wet grasslands, woodlands, edges of vernal pools, ephemeral streams
Elevation: < 1800 m.
Bioregional distribution: s North Coast Ranges, Cascade Range Foothills, n&c Sierra Nevada Foothills, n High Sierra Nevada, Great Central Valley.

Native

subsp. versicolor (Greene) C.T. Mason

Herbage glabrous
Flower: sepals glabrous to sparsely hairy
Fruit smooth or sharply tubercled
Ecology: Winter-wet grasslands, woodlands, edges of vernal pools, ephemeral streams
Elevation: < 1800 m.
Bioregional distribution: Cascade Range Foothills, n&c Sierra Nevada Foothills, n High Sierra Nevada.

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bioregional map for LIMNANTHES%20alba%20subsp.%20versicolor being generated
 
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Limnanthes alba subsp. versicolor
Retrieve dichotomous key for Limnanthes
Overlay Consortium of California Herbaria specimen data by county on this map
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